Research

 

 

 

 

      

 

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Individual Differences in WMC in Special Populations.  We tested high and low spans on the AX-CPT in order to compare the controlled-attention view of WMC and the context-processing view of schizophrenia and aging.  The results were partially consistent with the idea that low spans suffer from impaired context representation, but performance differed in meaningful ways from what would be predicted from a strict context-processing view.  The results are consistent with the notion that high and low spans differ in their ability to control attention, even on a task modified to reduce attentional demands.

 

 

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Other recent activity:

Individual Differences in WMC and Cue-dependent Search.  This project explores the notion that individual differences in WMC are partially due to differences in the ability to use retrieval cues to delimit a search set in memory.  This idea is investigated by exploring error responses, cumulative recall functions, and list-length effects in both complex span and free recall.