University of Detroit Mercy, United States
Research
Bistable Figure Reversals are Related to Symbol Search Performance: Incremental Validity of Symbol Search as a Measure of Attention and Visual
Working Memory
Author(s): Barry Dauphin*, Harold H. Greene, MindeeJuve, MellisaA. Boyle and Ellen F. Day
Preliminary fMRI research has suggested that both bistable figure reversal and Symbol Search (a measure of processing speed) utilize the same neural pathways during task execution, namely the dorsolateral prefrontal cortex. The fMRI findings predict a positive relationship between Symbol Search (SS) and bistable figure reversal (BFR). In Study 1, a bistable Necker Cube and the My Wife/My Mother-in-law figure were presented on cards, and participants indicated reversals by tapping on a table. The frequency of perceptual reversals was positively correlated with performance on SS (WAIS-III) but not with Picture Completion scores (a measure of visual processing). In Study 2 the Necker Cube was presented on a computer screen, and eye movements were monitored. Participants indicated reversals by pressing a response button. Again, the frequency of perceptual reversals of the Necker Cube was .. View More»
