N-methyl-d-aspartate receptor blockade impairs behavioural performance of rats in a reaction time task: New evidence for glutamatergic-dopaminergic interactions in the striatum

Neuroscience ◽  
1994 ◽  
Vol 61 (3) ◽  
pp. 521-531 ◽  
Author(s):  
C. Baunez ◽  
A. Nieoullon ◽  
M. Amalric
Keyword(s):  
Reaction Time ◽  
Reaction Time Task ◽  
Receptor Blockade ◽  
Time Task ◽  
Aspartate Receptor ◽  
Behavioural Performance ◽  
New Evidence

Modeling Within-Person Variance in Reaction Time Data of Older Adults

GeroPsych ◽  
2011 ◽  
Vol 24 (4) ◽  
pp. 169-176 ◽  
Author(s):  
Philippe Rast ◽  
Daniel Zimprich
Keyword(s):  
Reaction Time ◽  
Cognitive Aging ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Reaction Time Data ◽  
Scale Model ◽  
Time Data ◽  
Time Task ◽  
The Mean ◽  
Second Wave

In order to model within-person (WP) variance in a reaction time task, we applied a mixed location scale model using 335 participants from the second wave of the Zurich Longitudinal Study on Cognitive Aging. The age of the respondents and the performance in another reaction time task were used to explain individual differences in the WP variance. To account for larger variances due to slower reaction times, we also used the average of the predicted individual reaction time (RT) as a predictor for the WP variability. Here, the WP variability was a function of the mean. At the same time, older participants were more variable and those with better performance in another RT task were more consistent in their responses.

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