Time-on-task effect in trait anhedonia. - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue European Psychiatry Année : 2004

Time-on-task effect in trait anhedonia.

Résumé

The capacity to sustain attention was explored in a sample of anhedonic subjects according to the Chapman physical anhedonia scale. Sustained attention was determined by studying task-induced changes over the duration of the Eriksen response competition task [Percept. Psychophys. 16 (1974) 143]. Anhedonic subjects had longer reaction times (RTs), but missed no more targets than control subjects. Anhedonic subject RTs got longer with time-on-task (TOT) and displayed greater intra-subject variability. These results confirm those of a previous study indicating that anhedonic subjects may have developed a more conservative response strategy [Psychophysiology 37 (2000) 711] and suggest that this strategy may result in a more rapid decrease in energetical resources. Moreover, the greater intra-subject variability demonstrates the importance of assessing performance over time and its relationship to the variability of responses in the cognitive performance of anhedonic subjects.

Dates et versions

hal-00541620 , version 1 (30-11-2010)

Identifiants

Citer

Stéphanie Dubal, Roland Jouvent. Time-on-task effect in trait anhedonia.. European Psychiatry, 2004, 19 (5), pp.285-91. ⟨10.1016/j.eurpsy.2004.04.007⟩. ⟨hal-00541620⟩
18 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More