Safa Zaki

Safa Zaki

Areas of Expertise

Categorization, concept learning, dissociations and memory.

Scholarship/Creative Work

Selected Publications

For electronic copies of articles click here.


  • Zaki, S.R, & Salmi, I. (2019). Sequence as context in category learning: An eye-tracking study. Journal of Experimental Psychology: Learning, Memory, and Cognition. Advance online publication.
  • Zaki, S.R. & Kleinschmidt, D. (2015). Procedural memory effects in categorization: evidence for multiple systems or task complexity? Memory and Cognition, 42, 508-523. Z
  • 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.