Response properties of visual interneurons to motion stimuli in the praying mantis, Tenodera aridifolia

Yoshifumi Yamawaki, Yoshihiro Toh

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Intracellular responses of motion-sensitive visual interneurons were recorded from the lobula complex of the mantis, Tenodera aridifolia. The interneurons were divided into four classes according to the response polarity, spatial tuning, and directional selectivity. Neurons of the first class had small, medium, or large receptive fields and showed a strong excitation in response to a small-field motion such as a small square moving in any direction (SF neurons). The second class neurons showed non-directionally selective responses: an excitation to a large-field motion of gratings in any direction (ND neurons). Most ND neurons had small or medium-size receptive fields. Neurons of the third class had large receptive fields and exhibited directionally selective responses: an excitation to a large-field motion of gratings in preferred direction and an inhibition to a motion in opposite, null direction (DS neurons). The last class neurons had small receptive fields and showed inhibitory responses to a moving square and gratings (I neurons). The functional roles of these neurons in prey recognition and optomotor response were discussed.

Original languageEnglish
Pages (from-to)819-832
Number of pages14
JournalZoological science
Volume20
Issue number7
DOIs
Publication statusPublished - Jul 1 2003

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All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

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