Safa Zaki

Safa Zaki

Professor of Psychology, Chair of Cognitive Science Program

Psychology Offices and Labs Rm 134


B.A. American University (1989)
M.A. Arizona State University, Psychology (1993)
Ph.D. Arizona State University, Psychology (1996)

Areas of Expertise

Categorization, concept learning, dissociations and memory.


Note: courses in gray are not offered this academic year.

Scholarship/Creative Work

Selected Publications

For electronic copies of articles click here.


  • Zaki, S.R. & Kleinschmidt, D. (in press). Procedural Memory Effects in Categorization: evidence for multiple systems or task complexity? Memory and Cognition.
  • Zaki, S.R. & Johnson, S. (2013).  The Role of Gaze Direction in Face Memory in Autism Spectrum Disorders. Autism Research, 6, 280-7.
  • Nosofsky, R.M., Denton, S.E., Zaki, S.R., Murphy-Knudsen, A.F., & Unverzagt, F.W. (2012). Studies of implicit prototype extraction in patients with mild cognitive impairment and early Alzheimer's disease. Journal of Experimental Psychology: Learning, Memory, and Cognition, 38, 860-880.
  • Zaki, S.R. & Cruz, J. ( 2010). Parsimony and the triple-system theory of concepts. Brain & Behavioral Sciences, 33, 230-231.
  • Zaki, S.R. & Nosofsky, R. (2007). A high-distortion effect in the prototype-learning paradigm: Dramatic effect of category learning during test. Memory and Cognition, 35, 2088-2096.
  • Nosofsky, R. M., Stanton, R. D., & Zaki, S. R. (2005). Procedural interference in perceptual classification: Implicit learning or cognitive complexity? Memory & Cognition, 33, 1256-1271.
  • Zaki, S.R. (2005). Is categorization really intact in amnesia? A meta-analysis. Psychonomic Bulletin and Review, 11, 1048–1054
  • Zaki, S.R. & Nosofsky, R. M. (2004).  False-prototype enhancement effects in dot-pattern categorization.  Memory and Cognition. 32, 390-8.
  • Zaki, S.R., Nosofsky, R.M., Stanton, R.D, and Cohen, A.L. (2003). Prototype and exemplar accounts of category learning and attention allocation: a reassessment. Journal of Experimental Psychology: Learning, Memory, and Cognition. 29, 1160-1173
  • Zaki, S. R., Nosofsky, R.M., Ramercad, R. & Unverzagt, F. (2003).  Categorization and recognition performance in probable Alzheimer’s disease: Evidence for single-system models.  Journal of the International Neuropsychological Society, 9, 394-406.
  • Zaki, S.R. & Nosofsky, R. M. (2001). Exemplar model accounts of typicality and blending. Journal of Experimental Psychology: Learning, Memory, & Cognition, 27, 1022-1041.
  • Zaki, S.R. & Nosofsky, R. M. (2001). A single-system interpretation of dissociations between recognition and categorization in a task involving object-like stimuli.  Cognitive, Affective, and Behavioral Neuroscience. 1, 344-359.
  • Zaki, S.R. & Homa, D. (1999). Concepts and transformational knowledge. Cognitive Psychology, 39, 69-115. 
  • Nosofsky, R.M. & Zaki, S.R. (1998).  Dissociations between categorization and recognition in amnesics and normal individuals: an exemplar-based interpretation.  Psychological Science, 9, 247-255.

Current Committees

  • Cognitive Science Program, Chair
  • Cognitive Science Program
  • Committee on Appointments and Promotions