The reaction times of patients with monohemispheric brain lesions

The reaction times of patients with monohemispheric brain lesions 

Investigating patients with a monohemispheric brain damage (CT or MRI) has the great advantage of a well defined reason. Therefore, their reaction time data are well suited for testing the hypotheses of this work. The design of tasks presented to these patients was the following  

There are two problems to be mentioned. These subjects often show a right shift of distribution because of their slower reaction times. Therefore the range of interest has to be shifted to the right. The range used in this subjects begins with 300 ms and ends with 680 ms. Within this range the cycle time is observed directly. 

The second problem is the interpeak distance in the reaction time distribution. If the cycle time is not prolonged too much, the maximal distance used to compute the mean cycle time is 50 ms (maximum 2 normal cycle time). With a cycle time of about 30 ms, the maximum of 50 ms is a good upper boundary. 

The Pathways of Mind Springer-Verlag/Wien 2001 

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