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Full-Text Articles in Psychology

Least Among Brethren, Dami Onifade May 2015

Least Among Brethren, Dami Onifade

Student Scholar Symposium Abstracts and Posters

I was in the second row of Dr. Jules Herrell’s psychology class on a brisk day in Washington DC when I heard about the prison experiment at Stanford University during a college lecture. Naturally, I was shocked to learn young men my age that had gone in as equals could turn on each other for a meager salary and free meals. I wanted to show this quality of people in situations involving intimidation, peer pressure and envy. My co-writers and I found a way into the narrative through the bond of two friends, Prince and Malachi. This allowed us a …


Paradoxical Interaction Between Ocular Activity, Perception, And Decision Confidence At The Threshold Of Vision, Aaron Schurger May 2015

Paradoxical Interaction Between Ocular Activity, Perception, And Decision Confidence At The Threshold Of Vision, Aaron Schurger

Psychology Faculty Articles and Research

In humans and some other species perceptual decision-making is complemented by the ability to make confidence judgements about the certainty of sensory evidence. While both forms of decision process have been studied empirically, the precise relationship between them remains poorly understood. We performed an experiment that combined a perceptual decision-making task (identifying the category of a faint visual stimulus) with a confidence-judgement task (wagering on the accuracy of each perceptual decision). The visual stimulation paradigm required steady fixation, so we used eye-tracking to control for stray eye movements. Our data analyses revealed an unexpected and counterintuitive interaction between the steadiness …