Mental health support becomes most fragile at the boundaries between systems. A person may leave a hospital clinically stable but without secure housing. An older adult may receive treatment for depression while loneliness, declining mobility and caregiver strain remain unaddressed. A young person may move from adolescent services into adulthood only to discover that the relationships and practical support surrounding their treatment have disappeared.
Argentina's National Mental Health Law, Law 26,657, provides a clear direction for addressing these problems. It establishes a rights-based model in which care should preferably take place outside inpatient settings, through interdisciplinary and intersectoral approaches grounded in primary health care. The law also explicitly envisages community services extending beyond clinical treatment into social and occupational inclusion, home support, supported housing and assistance to families and communities.
Within the Argentina Aging, Long-Term Care & Community Support Knowledge Hub, mental health therefore belongs alongside long-term care, disability and community support rather than being treated as a separate clinical subject. The central question is not simply whether psychiatric treatment is available. It is whether people experiencing mental distress can obtain coordinated support that enables recovery, relationships, housing stability, participation and an ordinary life in their community.
That challenge remains current in 2026. Argentina's National Mental Health Plan 2023–2027 continues the community orientation of Law 26,657, while more recent national measures have addressed workforce development and standards for mental health and problematic-substance-use establishments. The policy direction is substantial. Its effectiveness ultimately depends on what can be delivered across Argentina's federal and geographically diverse health and social landscape.
Argentina's legal model changes what mental health care is expected to achieve
Law 26,657 is important because it does more than regulate psychiatric treatment. It defines mental health as a process shaped by historical, socioeconomic, cultural, biological and psychological factors and links its protection to human and social rights.
That conception changes the purpose of a mental health system.
If mental health is affected by social conditions, treatment cannot be organized solely around diagnosis, medication and inpatient capacity. Housing, employment, income, relationships, discrimination, community participation and access to ordinary health services become relevant to recovery.
The law accordingly requires that care should preferably occur outside hospital admission and within an interdisciplinary and intersectoral framework based on primary health care. It identifies psychology, psychiatry, social work, nursing and occupational therapy among the fields contributing to interdisciplinary teams, while allowing other relevant disciplines and trained workers to participate.
It also protects informed consent, recognizes people's right to receive an appropriate therapeutic alternative that restricts rights and freedoms as little as possible, and rejects the assumption that a mental health condition is necessarily permanent or unchangeable.
These principles connect closely with wider Impact Insights analysis of mental health service models and care pathways. The stronger model is not one in which every need is transferred into specialist psychiatry. It is one in which specialist services sit within a wider network capable of supporting health, recovery and community life.
Community care requires a network, not simply fewer psychiatric beds
Deinstitutionalization is sometimes described too narrowly as closing or reducing specialist psychiatric institutions. Argentina's legal framework sets a more demanding test.
Law 26,657 prohibits the creation of new psychiatric hospitals, neuropsychiatric institutions and other monovalent mental health inpatient institutions and requires existing ones to adapt and ultimately be replaced by alternative arrangements. It also establishes that mental health admissions should take place in general hospitals.
But removing an institutional bed does not create community capacity.
The law and its regulatory framework envisage a network that can include primary health care, mental health services in general hospitals, emergency responses, outpatient care, day services, psychosocial rehabilitation, home support, supported housing, family and community assistance and opportunities for social and occupational inclusion.
National service guidance has similarly described networks containing mental health teams in health centers, general-hospital services, home care, day centers and hospitals, socio-occupational inclusion services and housing arrangements with different levels of support.
The operational principle is continuity.
A person experiencing an acute episode may require short-term admission. The success of that admission is partly determined by what exists before and after it: whether primary care can identify deterioration, whether community teams can provide follow-up, whether medication and psychological support continue, whether housing remains available and whether family members understand where to seek help.
Without those interfaces, institutional care can reappear through the back door. People remain in hospital because no suitable alternative exists, return repeatedly because community follow-up is weak, or become dependent on families who are expected to compensate for missing formal capacity.
Primary care is one of the most important foundations of reform
Argentina's National Mental Health Plan 2023–2027 identifies mental health in the first level of care as one of its core axes. This reflects a practical reality: many people experiencing anxiety, depression, problematic substance use, distress associated with chronic illness or emerging cognitive and psychological difficulties will encounter the wider health system before they encounter a specialist mental health service.
Integrating mental health into primary care can shorten the distance between need and support.
It can also reduce unnecessary specialization. A primary care team that can recognize common mental health conditions, provide appropriate initial intervention, monitor treatment and refer when greater expertise is required creates a different pathway from one in which almost every mental health need depends on access to a psychiatrist.
This does not mean asking general health workers to work beyond their competence. It requires clear pathways, training, consultation and referral relationships.
Argentina has continued developing this capacity. During 2025, PAHO reported that more than 800 professionals had been trained through mhGAP-related work supporting mental health integration into primary care, with implementation planning across 20 jurisdictions.
The distinction matters in a federal system. National policy can define direction and provide technical support, but provinces and the Autonomous City of Buenos Aires organize health services within different local structures and capacities. Progress therefore cannot be assumed to be identical across all jurisdictions.
Effective integration between behavioral health and wider community care depends on whether local networks can translate national principles into accessible pathways.
Scenario: depression is not only a prescription problem in Córdoba
A 68-year-old man in Córdoba develops depression after his wife's death. He also has diabetes and reduced mobility. He attends primary care because his sleep has deteriorated and he is struggling to manage his medication.
A fragmented pathway could separate each problem. His diabetes is reviewed medically, medication may be prescribed for depression, and his increasing isolation remains largely outside the clinical record.
A community-oriented response treats the problems as connected without assuming that one professional must solve all of them.
The primary care team assesses his mental and physical health, explores suicide risk and agrees an initial treatment plan. A mental health professional becomes involved where indicated. The team also identifies that he has stopped attending the neighborhood activities that previously gave structure to his week and that his daughter, who lives elsewhere, has become increasingly worried.
Support therefore includes more than symptom management. Community connections are rebuilt gradually, physical-health monitoring continues and his preferences about family involvement are respected. If his mental state deteriorates, the team has a defined route to specialist assessment rather than waiting until an emergency requires hospital intervention.
Success is measured not only by a lower depression score. It includes whether he is eating and sleeping more consistently, managing his diabetes, reconnecting socially and regaining confidence in everyday life.
The scenario illustrates why primary care and care coordination are fundamental to community mental health. The objective is not to medicalize loneliness, but to ensure that clinical and social contributors to distress are visible within the same pathway.
Recovery depends on social infrastructure as well as treatment
Argentina's mental health legislation is unusually explicit about the relationship between treatment and social inclusion. Article 11 of Law 26,657 requires promotion of coordinated action involving health authorities and areas such as education, social development and work. Its examples include socio-occupational inclusion, supervised home care, support to families and communities, community prevention, shared living arrangements, day hospitals, work cooperatives and training initiatives.
The regulatory framework goes further in recognizing access to work, education, culture, art, sport and housing as relevant to intersectoral mental health policy.
This is important because discharge from clinical treatment and recovery are not synonymous.
A person may no longer require hospital admission but still lack the conditions needed to live safely and meaningfully. Housing insecurity can destabilize treatment. Unemployment can deepen poverty and isolation. Loss of social relationships can increase dependence on formal services. Families can become exhausted when they are expected to provide continuous supervision without respite or professional support.
Community mental health therefore requires social capacity around clinical care.
This does not mean that every social problem becomes the responsibility of the health service. It means that mental health pathways need reliable interfaces with the systems capable of addressing those problems.
Organizations examining whether their own services connect treatment with wider outcomes can use the Community Impact Report Builder to structure evidence about participation, relationships and community outcomes. It is not an Argentine statutory reporting framework, but it can help prevent performance assessment from stopping at clinical activity.
Housing can determine whether community care is genuinely possible
Housing deserves particular attention because it can become confused with treatment.
Argentina's regulatory framework for Law 26,657 expressly states that therapeutic arrangements involving accommodation should not be used for people whose problem is exclusively housing. That distinction is essential.
A person should not remain in a clinical environment simply because they have nowhere suitable to live. Equally, a supported housing arrangement should not become an institution by another name because residents are subjected to unnecessary clinical control.
Different people need different levels of support. Some may live independently with periodic visits. Others may benefit from supported shared accommodation, intensive home support or transitional arrangements following a long admission.
The purpose should be to provide the least restrictive arrangement capable of sustaining the person's health, safety and chosen life.
Housing also creates an accountability question. If someone is clinically ready to leave hospital but remains because suitable accommodation or community support is unavailable, the resulting delay should be visible as a system-capacity problem rather than attributed solely to the individual's diagnosis.
Hospital care remains necessary, but its role changes within a community system
A community-based model does not mean that inpatient mental health care disappears. Some people will experience severe episodes requiring intensive assessment, treatment and short-term containment of risk.
The difference lies in where hospitalization sits within the pathway.
Law 26,657 establishes general hospitals as the appropriate setting for mental health admissions and treats hospitalization as a therapeutic resource that should be used restrictively when outpatient approaches are insufficient. This is both a rights principle and a system-design principle.
Integrating mental health into general hospitals reduces the institutional separation between mental and physical health. It matters for people with complex physical conditions, older adults, people with disabilities and anyone whose mental and physical health needs interact.
Argentina updated national standards for the habilitation of mental health and problematic-substance-use establishments and services in March 2026. Resolution 441/2026 describes, among other arrangements, outpatient establishments and mental health services integrated into hospitals, clinics and sanatoriums, with interdisciplinary workforce expectations. Jurisdictional requirements continue to matter alongside national standards.
The strongest hospital model is therefore connected in both directions: people can obtain specialist assessment when community support is insufficient, and discharge returns them to an active network rather than an administrative endpoint.
This requires reliable information transfer, medication reconciliation where relevant, follow-up arrangements and clarity about who will respond if symptoms or risks recur.
Scenario: discharge succeeds only when the community pathway is ready
A 39-year-old woman in Greater Buenos Aires is admitted to a general hospital during a severe mental health episode. Her condition improves and the clinical team considers that continued inpatient treatment is no longer necessary.
The difficulty is outside the ward. She previously lived with a relative, but the relationship has deteriorated. She has stopped working and has limited income. Her community mental health contacts have been intermittent.
A discharge defined solely by clinical stability could return her to circumstances likely to undermine recovery. Keeping her in hospital because those circumstances remain unresolved would create a different problem: an unnecessary restriction and inappropriate use of inpatient capacity.
The pathway therefore needs coordination before discharge. The hospital team establishes the follow-up service, confirms how medication and psychological support will continue and identifies the social and housing issues requiring action. The woman's own priorities are central to the plan rather than being replaced by assumptions about what professionals consider safest.
Information follows her into the community with appropriate consent. A named service knows that she has been discharged and makes contact rather than waiting for her to navigate the system alone.
If she misses appointments, the response considers why. Transport, fear, medication effects, unstable accommodation or dissatisfaction with treatment may all require different interventions.
This is the practical meaning of mental health to community-support transitions. Discharge quality is determined partly by whether the receiving environment can sustain recovery.
Families are important partners, but they cannot substitute for a service network
Family relationships can be central to recovery. Relatives may notice deterioration early, support appointments, provide practical assistance and help a person remain connected with familiar routines.
Families can also experience considerable pressure.
A parent supporting an adult child with recurrent psychosis may become the informal crisis service. A spouse may monitor medication and sleep while also managing employment and household responsibilities. Adult children may gradually assume responsibility for an older parent's depression, dementia or complex behavioral change.
A community model becomes fragile if it transfers responsibilities previously held by institutions directly to unpaid relatives.
Argentina's legal framework recognizes support to families and community groups as part of the community mental health network. Operationally, that means families may need information, guidance, crisis contacts and support in their own right.
At the same time, confidentiality and autonomy remain important. Being a concerned relative does not automatically create unrestricted access to another adult's clinical information or decision-making authority.
Teams need the skill to work between these principles: listening to relevant information from families, sharing information where consent and law allow, involving people chosen by the individual and avoiding the assumption that family preference automatically determines the care plan.
This is especially important where family relationships themselves contribute to distress or where the person does not want particular relatives involved.
Community care must work across different stages of life
Mental health need changes across the life course, but service structures can create artificial boundaries.
Children and adolescents require developmentally appropriate support involving families, schools and community environments. Working-age adults may need assistance connecting treatment with employment, housing, parenting and relationships. Older adults may experience depression, anxiety, bereavement, dementia, physical frailty and social isolation simultaneously.
The central continuity question is what happens at transitions.
A young person receiving structured adolescent mental health support should not reach adulthood and encounter an entirely new system without preparation. Someone with a long-standing psychiatric condition who develops substantial physical disability should not be forced to choose between mental health and disability pathways. An older adult entering long-term care should not lose access to appropriate mental health expertise simply because their primary service category has changed.
This requires pathways organized around changing need rather than administrative age or program boundaries.
The principle is particularly relevant to people with complex needs. Mental illness may coexist with intellectual disability, problematic substance use, chronic physical disease, acquired brain injury, dementia or homelessness. Separating each condition into a different organizational silo may simplify administration while making the person's actual pathway more difficult.
Scenario: transition to adulthood needs to preserve relationships and momentum
A 17-year-old in Santa Fe has received psychological and psychiatric support following severe anxiety, self-harm and prolonged absence from school. Over time, she has rebuilt a relationship with education and developed trust with her clinical team.
Her eighteenth birthday should not become the point at which that progress is administratively reset.
Several months before transition, the existing team begins planning with her. The discussion covers not only clinical treatment but education, family involvement, social relationships and what she wants from adult services. Information is transferred with her knowledge rather than simply forwarded between organizations.
The receiving service participates before the existing relationship ends. Responsibilities during the transition period are clear, including who responds if risk escalates. Her parents remain involved to the extent she wants and where legal and clinical circumstances permit, while the increasing autonomy associated with adulthood is recognized.
After transition, the pathway is reviewed rather than assumed to have succeeded because a referral was accepted. Did she attend? Does she understand the new arrangement? Has education remained stable? Does she know how to obtain help during deterioration?
The example shows why continuity should be measured through the person's experience, not simply through completed referrals. A technically successful transfer can still be a human discontinuity.
Workforce transformation is as important as service redesign
Community mental health changes the competencies required from the workforce.
Specialist psychiatry and psychology remain important, but community systems also depend on nursing, social work, occupational therapy, primary care professionals, community health workers, therapeutic companions and other technical and support roles. Teams need to work across professional and organizational boundaries.
Argentina's National Mental Health Law expressly requires interdisciplinary care. More recent policy reinforces that direction. The Ministry of Health approved a National Mental Health Training Program in December 2025, including an objective of strengthening interdisciplinary teams through continuing education and technical updating.
Resolution 441/2026 also reflects interdisciplinary workforce expectations in national establishment standards, while recognizing a broader group of professional and technical roles around core teams.
The challenge is not simply producing more professionals. It is developing mental health workforce capability and clinical oversight appropriate to a community model.
That includes competence in:
- rights-based and person-centered practice;
- assessment and management of changing risk;
- physical and mental health integration;
- working with families and social networks;
- community rehabilitation and recovery;
- intersectoral coordination; and
- supporting autonomy without abandoning people when needs become complex.
Supervision matters because community work involves judgment. Staff may be working in people's homes or community environments without immediate access to a full multidisciplinary team. They need clear escalation routes and opportunities to reflect on difficult decisions.
The Predictive Workforce Risk Module can help organizations examine how vacancies, turnover and workforce instability may affect continuity. It is not a substitute for Argentina's professional regulation or workforce planning, but it can help make service fragility visible before it becomes a care failure.
Geography determines whether formal pathways become practical access
Argentina's territorial scale makes community mental health a geographic as well as clinical challenge.
Buenos Aires and other large urban centers can support concentrations of specialist services that are much harder to reproduce in sparsely populated areas. Smaller cities and rural communities may have fewer psychiatrists, psychologists or specialist teams and longer travel distances.
The response cannot simply be to reproduce the same service configuration everywhere.
Primary care becomes particularly important where specialist capacity is limited. Shared-care arrangements, professional consultation and telehealth can extend expertise. Mobile or territorial approaches may reach people who would otherwise face substantial travel.
But technology does not remove the need for local human capacity. Someone experiencing severe distress may still need face-to-face assessment, practical support, emergency response and relationships with workers who understand the local environment.
Rural mental health therefore connects directly with access in rural and underserved communities. Equity should be assessed through what people can actually obtain, not whether the same policy technically applies to every jurisdiction.
Scenario: specialist reach without trying to replicate an urban system
Consider a small community in Patagonia where the local health center supports a middle-aged man with recurrent severe depression. Specialist psychiatric capacity is available in a larger city several hours away.
Requiring him to travel for every review creates predictable barriers. A purely remote model creates different risks if local workers cannot assess deterioration or respond when immediate support is required.
A stronger pathway combines capacities.
The local primary care team maintains the continuing relationship and monitors physical and mental health. Specialist consultation is provided remotely when clinically appropriate, with planned face-to-face assessment when necessary. The local team has an agreed escalation route if suicide risk or other serious concerns increase.
Information is shared through appropriate processes so that the specialist is not repeatedly reconstructing the person's history. His family is involved according to his preferences and needs, but responsibility for clinical monitoring is not simply transferred to them.
The model does not give the community every service available in a major urban center. It seeks functional access to expertise while retaining local continuity.
That distinction is important internationally. Geographic equity does not always mean identical infrastructure. It can mean designing networks so that distance does not determine whether a person receives competent, timely support.
Crisis care should connect people back to continuing support
A mental health crisis is one of the clearest tests of system integration.
Emergency responses need to address immediate risk, but the pathway should not begin and end with stabilization. If the factors contributing to the crisis remain unchanged, repeated emergency use becomes more likely.
For some people, the missing component is continuing clinical treatment. For others it may include unstable housing, problematic substance use, domestic abuse, social isolation, interrupted medication or a breakdown in family support.
Argentina's community model creates a strong conceptual basis for connecting crisis response with continuing care. General hospitals, community mental health services, primary care and social supports need interfaces that prevent the person repeatedly starting again at each point of contact.
Governance should therefore examine patterns, not only individual episodes.
Repeated emergency presentations, short intervals between discharge and readmission, failed referrals or recurrent loss of contact can reveal weaknesses in the pathway. Those patterns should reach service leaders and health authorities in a form that allows capacity, workflow and access problems to be addressed.
This is where crisis response, stabilization and continuity need to be treated as one pathway rather than separate operational functions.
Quality should include rights, continuity and recovery
Mental health quality cannot be reduced to clinical outcomes alone.
Argentina's legal framework places substantial weight on rights, autonomy, informed consent and the least restrictive appropriate intervention. Those principles need to become visible in quality evidence.
Traditional measures remain necessary: waiting times, workforce, medication safety, incidents, readmissions, service utilization and complaints can all identify important problems. Community systems also need to know whether people remain connected with support, whether discharge arrangements work, whether restrictive interventions are proportionate and whether people experience greater participation and control.
A balanced evidence set might therefore examine:
- access to first assessment and continuing support;
- continuity after hospital or crisis episodes;
- repeat emergency use and readmission patterns;
- housing, occupational and social outcomes where relevant;
- use and review of restrictive interventions;
- service-user and family experience; and
- geographic differences in access and outcomes.
None of these measures is sufficient alone. A reduction in inpatient use, for example, is positive only if people are receiving appropriate alternatives. Shorter admissions are not automatically better if discharge is unsafe. Increased community contacts do not demonstrate recovery if the contacts are fragmented or unwanted.
The Quality Dashboard Builder offers organizations a practical way to bring operational, quality and outcome measures together. The indicators still need to reflect Argentine responsibilities and local service models rather than being imported uncritically from another system.
Technology can strengthen the network without becoming the network
Digital mental health has considerable potential in a country with Argentina's geography.
Teleconsultation can extend specialist expertise. Shared digital information can improve continuity between services. Electronic referral systems can reduce the risk that a person disappears between organizations. Remote contact may help maintain support when travel is difficult.
Technology can also create new forms of exclusion.
People experiencing poverty may lack reliable connectivity or devices. Cognitive difficulties, disability, distress or limited digital confidence can make remote interfaces harder to use. A person living in an unsafe or crowded household may not have privacy for a mental health consultation.
Digital services should therefore expand the range of access routes rather than become the only route.
Information governance is equally important. Mental health information can be particularly sensitive, and wider interoperability should not become unrestricted visibility. Systems need clear purposes, appropriate access controls and consent processes consistent with applicable law.
Organizations considering technology-enabled models can use the Digital Transformation, AI and Cybersecurity Readiness Assessment to examine implementation readiness, governance and information risk. It should complement rather than replace country-specific legal and clinical requirements.
Federal governance must turn variation into learning rather than invisibility
Argentina's federal structure means that mental health transformation is necessarily implemented through multiple jurisdictions. The Ministry of Health provides national stewardship and Law 26,657 establishes the national framework, but provinces and the Autonomous City of Buenos Aires operate within their own health systems and regulatory environments.
The National Mental Health Plan 2023–2027 was explicitly designed with a federal perspective and was presented through the Consejo Federal de Salud, with jurisdictions agreeing to advance implementation.
Federalism makes local adaptation possible, but it also increases the importance of comparable evidence.
Variation should be visible enough to distinguish legitimate local design from unequal access. National and jurisdictional leaders need to understand where primary-care integration is developing, where general-hospital mental health capacity exists, where community alternatives remain limited and where workforce shortages repeatedly disrupt pathways.
Governance also needs qualitative evidence. People using services, families and workers can identify problems that administrative data may miss: a referral process that is technically open but practically inaccessible, a community service with long delays, or a housing pathway that exists on paper but rarely produces placements.
Organizations examining their own accountability structures can use the Governance Maturity Assessment to test whether responsibility, escalation and evidence are sufficiently clear. Its framework is generic rather than Argentina-specific, but the underlying governance questions apply across complex networks.
The next stage is deeper community capacity rather than a new philosophy
Argentina does not need to invent the philosophical basis for community mental health. It is already embedded in Law 26,657, its regulatory framework and the National Mental Health Plan.
The harder task is implementation at sufficient depth.
That means strengthening primary care without leaving it unsupported, developing interdisciplinary community teams, maintaining appropriate general-hospital capacity, expanding housing and occupational supports, building workforce capability and creating reliable pathways across crisis, treatment and recovery.
It also means resisting false choices.
Rights and safety are not opposites. Community care and specialist expertise are not opposites. Family involvement and individual autonomy are not necessarily opposites. Effective systems have to manage these tensions rather than resolve them by defaulting to institutional control or, at the other extreme, withdrawing support in the name of independence.
The strongest direction is one in which the intensity of support can change without the person repeatedly losing continuity.
Someone may move from crisis care to intensive community support, then to lower-intensity primary care and social participation while retaining a route back to specialist help if needed. That is more demanding organizationally than assigning the person permanently to one service, but it is closer to how mental health and recovery actually change over time.
International learning lies in building the alternatives before relying on them
Argentina's experience offers a wider lesson for countries moving from institutional toward community-based mental health systems.
Legal reform matters. Rights protections matter. Restrictions on creating new monovalent institutions can establish a clear direction. But community reform ultimately succeeds or fails according to the capacity built outside those institutions.
The transferable principle is therefore not simply deinstitutionalization. It is capacity transfer.
Clinical expertise, workforce, funding, housing support, crisis response, rehabilitation and accountability all need to move into or connect effectively with the community. Otherwise, responsibility migrates from institutions to emergency departments, families, police, homelessness services or individuals themselves without creating a coherent alternative.
Argentina's emphasis on interdisciplinary, intersectoral and primary-care-based support provides a strong conceptual framework for avoiding that outcome. Its federal structure also demonstrates why national policy needs local implementation intelligence.
Other systems cannot directly reproduce Argentina's legal or administrative model. They can apply the underlying test: whenever institutional dependence is reduced, can the system identify precisely which community capacities will replace it, who is responsible for providing them and how decision-makers will know whether they are working?
Conclusion
Argentina's mental health framework establishes an ambitious and fundamentally community-oriented direction. Law 26,657 places rights, interdisciplinary practice, primary health care and the least restrictive appropriate support at the center of the model. The National Mental Health Plan 2023–2027 extends that direction through primary care, intersectoral networks, general hospitals, transformation of monovalent institutions, prevention, workforce development and stronger information.
The central challenge is no longer defining community mental health. It is making it dependable across different jurisdictions, life stages and levels of need.
That requires clinical services to connect with housing, employment, education, disability support and community life. It requires hospitals to discharge into active pathways, primary care to have access to specialist expertise, families to receive support without becoming substitute services, and workforce development to match the complexity of community practice. Technology and better data can strengthen those relationships, but neither can replace local capacity or human continuity.
For Argentina, the strongest future system will not be measured simply by the number of institutional beds removed or community contacts created. Its more meaningful test will be whether people experiencing mental distress can obtain timely help, retain their rights and relationships, move between levels of support without being lost, and continue building lives within their communities. That is where national policy becomes practical social inclusion.