An integrated hypothesis for cognitive and positive symptoms in schizophrenia
An integrated hypothesis for cognitive and positive symptoms in schizophrenia:
Schizophrenia is a complex developmental brain disorder with three main clusters of symptoms: (i) positive (psychosis, delusions and hallucinations),...
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Información proyecto INTEGRATE
Duración del proyecto: 37 meses
Fecha Inicio: 2018-10-25
Fecha Fin: 2021-12-01
Líder del proyecto
Innovasjon Norge
No se ha especificado una descripción o un objeto social para esta compañía.
Presupuesto del proyecto
208K€
Fecha límite de participación
Sin fecha límite de participación.
Descripción del proyecto
An integrated hypothesis for cognitive and positive symptoms in schizophrenia:
Schizophrenia is a complex developmental brain disorder with three main clusters of symptoms: (i) positive (psychosis, delusions and hallucinations), (ii) negative (reduced motivation and social withdrawal), and (iii) cognitive (memory and executive function deficits). For the last 50 years, the only effective treatment has consisted of antipsychotics targeting dopamine receptors. Yet, antipsychotics control mostly the positive symptoms and are largely ineffective at treating other deficits.
It is frequently assumed that distinct pathophysiological mechanisms underlie different symptoms. Psychosis is associated with striatal hyperdopaminergia, probably due to abnormal activity of midbrain dopaminergic neurons. Yet cognitive deficits seem to arise from cortical excitation/inhibition unbalance. I propose to test, in a mice model, the hypothesis that striatal hyperdopaminergia results from dysfunctional cortical inhibition. If verified, this would suggest that normalizing cortical activity in schizophrenia might both restore cognitive function and prevent psychosis.