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Paper   IPM / Biological Sciences / 14838
School of Biological Sciences
  Title:   Gender Classification Based on Eye Movements: A Processing Effect during Passive Face Viewing
1.  Negar Sammaknejad
2.  Hamid Reza Pouretemad
3.  Changiz Eslahchi
4.  Alireza Salahirad
5.  Ashkan Alinejad
  Status:   Published
  Journal: Journal Advances in Cognitive Psychology
  No.:  3
  Vol.:  13
  Year:  2017
  Pages:   232-240
  Supported by:  IPM
Studies have revealed superior face recognition skills in females, partially due to their different eye movement strategies when encoding faces. In the current study, we utilized these slight but important differences and proposed a model that estimates the gender of the viewers and classifies them into two subgroups, males and females. An eye tracker recorded participant�??s eye movements while they viewed images of faces. Regions of interest (ROIs) were defined for each face. Results showed that the gender dissimilarity in eye movements was not due to differences in frequency of fixations in the ROI s per se. Instead, it was caused by dissimilarity in saccade paths between the ROIs. The difference enhanced when saccades were towards the eyes. Females showed significant increase in transitions from other ROI s to the eyes. Consequently, the extraction of temporal transient information of saccade paths through a transition probability matrix, similar to a first order Markov chain model, significantly improved the accuracy of the gender classification results.

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