Ph.D. 1961, Stanford University
My graduate students and I conduct experimental and theoretical research on visual cognition. We are concerned with how humans obtain meaning from visual stimuli such as pictures and words. I am interested in mathematical and computer models of perception, reading, picture processing, memory, cognition, decision making, and response selection. We are currently investigating the structure of lexical, pictorial, and semantic memory in visual recognition. We are also investigating whether truly biolingual individuals have a separate semantic memory for each language or a single unitary abstract, conceptual memory which serves both languages.
REPRESENTATIVE PUBLICATIONS Amrhein, P.C. and Theios, J. (1993). The time it takes elderly and young individuals to draw pictures and write words. Psychology and Aging, 8, 197-206.
Dietrich, D., & Theios, J. (1992). Priming outside of awareness and subsequent stimulus identification. Perceptual and Motor Skills, 75, 483-493.
Theios, J. & Morgan, S. T. (1990) On the evolution of a visual percept. The Twelfth Annual Conference of the Cognitive Science Society. Hillsdale N.J.: Erlbaum Associates, 590-597.
Theios, J. & Amrhein, P. C. (1989). Theoretical analysis of the cognitive processing of lexical and pictorial stimuli: Reading, naming, and visual and conceptual comparisons. Psychological Review, 96, 5-24.