Alejandro Lleras, Professor of Psychology, Charles Eriksen Professorial Scholar

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Personal profile

Professional Information

Attention, Vision, Awareness

Professional Information

CAREER award recipient from National Science Foundation

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Research Interests

My work is focused on understanding attention, both how it works and how it fails, mostly in the visual domain. I have studied issues such as temporal attention, why we tend to get distracted when we concentrate over long periods of time, how we tune out the world when we are trying to concentrate, and how it is that we find objects in a scene.

Education/Academic qualification

Ph.D., Pennsylvania State University

… → 2002

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Research Output

A target contrast signal theory of parallel processing in goal-directed search

Lleras, A., Wang, Z., Ng, G. J. P., Ballew, K., Xu, J. & Buetti, S., Feb 1 2020, In : Attention, Perception, and Psychophysics. 82, 2, p. 394-425 32 p.

Research output: Contribution to journalArticle

  • The impact of focused attention on subsequent emotional recollection: A functional MRI investigation

    Dolcos, F., Katsumi, Y., Bogdan, P. C., Shen, C., Jun, S., Buetti, S., Lleras, A., Bost, K. F., Weymar, M. & Dolcos, S., Feb 17 2020, In : Neuropsychologia. 138, 107338.

    Research output: Contribution to journalArticle

  • Distractor rejection in parallel search tasks takes time but does not benefit from context repetition*

    Ng, G. J. P., Buetti, S., Dolcos, S., Dolcos, F. & Lleras, A., Sep 14 2019, In : Visual Cognition. 27, 5-8, p. 609-625 17 p.

    Research output: Contribution to journalArticle

  • Predicting how color and shape combine in the human visual system to direct attention

    Buetti, S., Xu, J. & Lleras, A., Dec 1 2019, In : Scientific reports. 9, 1, 20258.

    Research output: Contribution to journalArticle

    Open Access
  • Predicting Search Performance in Heterogeneous Scenes: Quantifying the Impact of Homogeneity Effects in Efficient Search

    Lleras, A., Wang, Z., Madison, A. & Buetti, S., Jan 8 2019, In : Collabra: Psychology. 5, 1, p. 2

    Research output: Contribution to journalArticle

    Open Access