Bingo! Externally supported performance intervention for deficient visual search in normal aging, Parkinson's disease, and Alzheimer's disease

External support may improve task performance regardless of an individual's ability to compensate for cognitive deficits through internally generated mechanisms. We investigated if performance of a complex, familiar visual search task (the game of bingo) could be enhanced in groups with suboptimal vision by providing external support through manipulation of task stimuli. Participants were 19 younger adults, 14 individuals with probable Alzheimer's disease (AD), 13 AD-matched healthy adults, 17 non-demented individuals with Parkinson's disease (PD), and 20 PD-matched healthy adults. We varied stimulus contrast, size, and visual complexity during game play. The externally supported performance interventions of increased stimulus size and decreased complexity resulted in improvements in performance by all groups. AD also obtained benefit from increasing contrast, presumably by compensating for their contrast sensitivity deficit. The general finding of improved performance across healthy and afflicted groups suggests the value of visual support as an easy-to-apply intervention to enhance cognitive performance.     

The Hearts and Guts of White People

Beginning with the experience of a white woman's stomach seizing up in fear of a black man, this essay examines some of the ethical and epistemological issues connected to white ignorance. In conversation with Charles Mills on the epistemology of ignorance, I argue that white ignorance primarily operates physiologically, not cognitively. Drawing critically from psychology, neurocardiology, and other medical sciences, I examine some of the biological effects of racism on white people's stomachs and hearts. I argue for a nonideal medical theory focused on improving wellness in a society that systematically has damaged the health of people of color. The essay concludes that to be fully successful, critical philosophy of race must examine not just the financial, legal, political, and other forms of racism, but also its biological and physiological operations.     

REVIEWS

Feminism and Addiction, Claudia Bepko (Ed.). New York.
Feminist Perspectives on Addictions, Nan Van Den Bergh (Ed.). New York.
Engendered Lives, Ellyn Kaschak. New York.
Seldom Seen, Rarely Heard: Women's Place in Psychology, Jams Bohan (Ed.).
Still Loved by the Sun: A Rape Survivor's Journal, Migael Scherer. New York.