How do amplitude spectra influence rapid animal detection?

Gaspar, C.M. and Rousselet, G.A. (2009) How do amplitude spectra influence rapid animal detection? Vision Research(49), pp. 3001-3012.

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Abstract

Amplitude spectra might provide information for natural scene classification. Amplitude does play a role in animal detection because accuracy suffers when amplitude is normalized. However, this effect could be due to an interaction between phase and amplitude, rather than to a loss of amplitude-only information. We used an amplitude-swapping paradigm to establish that animal detection is partly based on an interaction between phase and amplitude. A difference in false alarms for two subsets of our distractor stimuli suggests that the classification of scene environment (man-made versus natural) may also be based on an interaction between phase and amplitude. Examples of interaction between amplitude and phase are discussed.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Rousselet, Dr Guillaume and Gaspar, Dr Carl
Authors: Gaspar, C.M., and Rousselet, G.A.
College/School:College of Science and Engineering > School of Psychology
College of Medical Veterinary and Life Sciences > Institute of Neuroscience and Psychology
Journal Name:Vision Research
Publisher:Pergamon
ISSN:0042-6989
ISSN (Online):1878-5646

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