Response-repetition effects in task switching—Dissociating effects of anatomical and spatial response discriminability

2011 ◽  
Vol 136 (3) ◽  
pp. 399-404 ◽  
Author(s):  
Iring Koch ◽  
Stefanie Schuch ◽  
Kim-Phuong L. Vu ◽  
Robert W. Proctor
Keyword(s):  
Task Switching ◽  
Response Repetition ◽  
Repetition Effects ◽  
Spatial Response ◽  
Response Discriminability

Basal Ganglia Play a Unique Role in Task Switching within the Frontal-Subcortical Circuits: Evidence from Patients with Focal Lesions

2008 ◽  
Vol 20 (6) ◽  
pp. 1079-1093 ◽  
Author(s):  
Einat Yehene ◽  
Nachshon Meiran ◽  
Nachum Soroker
Keyword(s):  
Basal Ganglia ◽  
Task Switching ◽  
Response Repetition ◽  
Focal Lesions ◽  
Repetition Effects ◽  
Unique Role ◽  
Task Rule ◽  
Abnormal Response ◽  
Mixing Costs

The performance of patients with lesions involving the basal ganglia (BG) was compared to that of patients with prefrontal (PFC) lesions, thalamic (TH) lesions, and age-matched controls in order to examine the specific role of the BG within the frontal-subcortical circuits (FSCC) in task switching. All the BG patients and none of the other participants showed a marked increase in error rate in incongruent trials where correct responses depended upon the choice of the correct task rule. Some BG patients erred in failing to switch tasks and others failed despite their attempt to switch tasks. Additionally, reaction time results indicate abnormal response repetition effects among the BG patients; failure in benefiting from advance task information among all the patients; and increased task mixing costs following PFC lesions. The authors conclude that although the frontal-subcortical circuits jointly determine some behaviors (such as benefiting from preparation), the BG play a unique role within the FSCC in action selection and/or the inhibition of irrelevant information.

Dopamine dependency of cognitive switching and response repetition effects in Parkinson's patients

2005 ◽  
Vol 43 (14) ◽  
pp. 1990-1999 ◽  
Author(s):  
Sheryl K. Shook ◽  
Elizabeth A. Franz ◽  
Christopher I. Higginson ◽  
Vicki L. Wheelock ◽  
Karen A. Sigvardt
Keyword(s):  
Response Repetition ◽  
Repetition Effects ◽  
Cognitive Switching
Sign in / Sign up

Export Citation Format

Share Document