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Intermediate, wholistic shape representation in object recognition: A pre-attentive stage of processing?

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journal contribution
posted on 2023-07-26, 15:35 authored by Jarrod Hollis, Glyn Humphreys, Peter M. Allen
Evidence is presented for intermediate, wholistic visual representations of objects and non-objects that are computed on-line and independent of visual attention. Short-term visual priming was examined between visually similar shapes, with targets either falling at the (valid) location cued by primes or at another (invalid) location. Object decision latencies were facilitated when the overall shapes of the stimuli were similar irrespective of whether the location of the prime was valid or invalid, with the effects being equally large for object and non-object targets. In addition, the effects were based on the overall outlines of the stimuli and low spatial frequency components, not on local parts. In conclusion, wholistic shape representations based on outline form, are rapidly computed on-line during object recognition. Moreover, activation of common wholistic shape representations prime the processing of subsequent objects and non-objects irrespective of whether they appear at attended or unattended locations. Rapid derivation of wholistic form provides a key intermediate stage of object recognition.

History

Refereed

  • Yes

Volume

15

Page range

761174

Publication title

Frontiers in Human Neuroscience

ISSN

1662-5161

Publisher

Frontiers Media

File version

  • Published version

Language

  • eng

Legacy posted date

2021-11-19

Legacy creation date

2021-11-19

Legacy Faculty/School/Department

Faculty of Science & Engineering

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