TY - JOUR
T1 - Hipoactivación precúnea e insular durante el procesamiento cognitivo en el primer episodio psicótico
T2 - revisión sistemática y metaanálisis de estudios de fMRI
AU - Soldevila-Matías, Pau
AU - Albajes-Eizagirre, Anton
AU - Radua, Joaquim
AU - García-Martí, Gracián
AU - Rubio, José M.
AU - Tordesillas-Gutierrez, Diana
AU - Fuentes-Durá, Inmaculada
AU - Solanes, Aleix
AU - Fortea, Lydia
AU - Oliver, Dominic
AU - Sanjuán, Julio
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Introduction: The neural correlates of the cognitive dysfunction in first-episode psychosis (FEP) are still unclear. The present review and meta-analysis provide an update of the location of the abnormalities in the fMRI-measured brain response to cognitive processes in individuals with FEP. Methods: Systematic review and voxel-based meta-analysis of cross-sectional fMRI studies comparing neural responses to cognitive tasks between individuals with FEP and healthy controls (HC) according to PRISMA guidelines. Results: Twenty-six studies were included, comprising 598 individuals with FEP and 567 HC. Individual studies reported statistically significant hypoactivation in the dorsolateral prefrontal cortex (6 studies), frontal lobe (8 studies), cingulate (6 studies) and insula (5 studies). The meta-analysis showed statistically significant hypoactivation in the left anterior insula, precuneus and bilateral striatum. Conclusions: While the studies tend to highlight frontal hypoactivation during cognitive tasks in FEP, our meta-analytic results show that the left precuneus and insula primarily display aberrant activation in FEP that may be associated with salience attribution to external stimuli and related to deficits in perception and regulation.
AB - Introduction: The neural correlates of the cognitive dysfunction in first-episode psychosis (FEP) are still unclear. The present review and meta-analysis provide an update of the location of the abnormalities in the fMRI-measured brain response to cognitive processes in individuals with FEP. Methods: Systematic review and voxel-based meta-analysis of cross-sectional fMRI studies comparing neural responses to cognitive tasks between individuals with FEP and healthy controls (HC) according to PRISMA guidelines. Results: Twenty-six studies were included, comprising 598 individuals with FEP and 567 HC. Individual studies reported statistically significant hypoactivation in the dorsolateral prefrontal cortex (6 studies), frontal lobe (8 studies), cingulate (6 studies) and insula (5 studies). The meta-analysis showed statistically significant hypoactivation in the left anterior insula, precuneus and bilateral striatum. Conclusions: While the studies tend to highlight frontal hypoactivation during cognitive tasks in FEP, our meta-analytic results show that the left precuneus and insula primarily display aberrant activation in FEP that may be associated with salience attribution to external stimuli and related to deficits in perception and regulation.
KW - Cognitive tasks
KW - First-episode psychosis
KW - Frontal lobe
KW - Functional MRI
KW - Insula
UR - http://www.scopus.com/inward/record.url?scp=85091849124&partnerID=8YFLogxK
U2 - 10.1016/j.rpsm.2020.08.001
DO - 10.1016/j.rpsm.2020.08.001
M3 - Review article
AN - SCOPUS:85091849124
SN - 1888-9891
JO - Revista de Psiquiatr??a y Salud Mental
JF - Revista de Psiquiatr??a y Salud Mental
ER -