Research

Parallel mechanisms for visual search in zebrafish


Reference:

Proulx, M. J., Parker, M. O., Tahir, Y. and Brennan, C. H., 2014. Parallel mechanisms for visual search in zebrafish. PLoS ONE, 9 (10), e111540.

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    Official URL:

    http://dx.doi.org/10.1371/journal.pone.0111540

    Abstract

    Parallel visual search mechanisms have been reported previously only in mammals and birds, and not animals lacking an expanded telencephalon such as bees. Here we report the first evidence for parallel visual search in fish using a choice task where the fish had to find a target amongst an increasing number of distractors. Following two-choice discrimination training, zebrafish were presented with the original stimulus within an increasing array of distractor stimuli. We found that zebrafish exhibit no significant change in accuracy and approach latency as the number of distractors increased, providing evidence of parallel processing. This evidence challenges theories of vertebrate neural architecture and the importance of an expanded telencephalon for the evolution of executive function.

    Details

    Item Type Articles
    CreatorsProulx, M. J., Parker, M. O., Tahir, Y. and Brennan, C. H.
    DOI10.1371/journal.pone.0111540
    DepartmentsFaculty of Humanities & Social Sciences > Psychology
    RefereedYes
    StatusPublished
    ID Code41704

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