Publications

Authors:

Brambilla, P.; Perlini, Cinzia; Bellani, Marcella; Tomelleri, Luisa; Ferro, Adele; Cerruti, Stefania; Marinelli, Veronica; Rambaldelli, Gianluca; Christodoulou, T.; Jogi, J.; Dima, D.; Tansella, Michele; Balestrieri, M.; Frangou, S.

Title:

Increased salience of gains versus decreased associative learning differentiate Bipolar Disorder from Schizophrenia during incentive decision-making

Year:

2013

Type of item:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Language:

Inglese

Format:

A Stampa

Referee:

Sì

Name of journal:

Psychological Medicine

ISSN of journal:

0033-2917

N° Volume:

43

Number or Folder:

3

Page numbers:

571-580

Keyword:

Iowa Gambling Task; schizophrenia; bipolar disorder; incentive decision making

Short description of contents:

Abnormalities in incentive decision making, typically assessed using the Iowa Gambling Task (IGT), have been reported in both schizophrenia (SZ) and bipolar disorder (BD). We applied the Expectancy–Valence (E–V) model to determine whether motivational, cognitive and response selection component processes of IGT performance are differentially affected in SZ and BD. Performance on the IGT was assessed in 280 individuals comprising 70 remitted patients with SZ, 70 remitted patients with BD and 140 age-, sex- and IQ-matched healthy individuals. Based on the E–V model, we extracted three parameters, ‘ attention to gains or loses ’, ‘ expectancy learning ’ and ‘ response consistency ’, that respectively reflect motivational, cognitive and response selection influences on IGT performance. Both patient groups underperformed in the IGT compared to healthy individuals. However, the source of these deficits was diagnosis specific. Associative learning underlying the representation of expectancies was disrupted in SZ whereas BD was associated with increased incentive salience of gains. These findings were not attributable to non-specific effects of sex, IQ, psychopathology or medication. Our results point to dissociable processes underlying abnormal incentive decision making in BD and SZ that could potentially be mapped to different neural circuits.

Product ID:

70668

Handle IRIS:

11562/424737

Deposited On:

May 2, 2013

Last Modified:

November 9, 2022

Bibliographic citation:

Brambilla, P.; Perlini, Cinzia; Bellani, Marcella; Tomelleri, Luisa; Ferro, Adele; Cerruti, Stefania; Marinelli, Veronica; Rambaldelli, Gianluca; Christodoulou, T.; Jogi, J.; Dima, D.; Tansella, Michele; Balestrieri, M.; Frangou, S., Increased salience of gains versus decreased associative learning differentiate Bipolar Disorder from Schizophrenia during incentive decision-making «Psychological Medicine» , vol. 43 , n. 3 , 2013 , pp. 571-580

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