| Walking in Fourier's space: algorithms for the computation of periodicities in song patterns by the cricket Gryllus bimaculatus. | |
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MedLine Citation:
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PMID: 19756649 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Is discrimination of the envelope of an acoustic signal based on spectral or temporal computations? To investigate this question for the cricket Gryllus bimaculatus, pattern envelopes were constructed by the addition of several sine waves and modified by systematic phase changes. The phonotactic response of female crickets towards such sinusoidal but also rectangular pulse patterns was quantified on a locomotion compensator. Envelope patterns that exhibited a modulation frequency of 25 Hz as the dominant frequency were attractive and although changes of phase modified the temporal pattern, the values of attractiveness remained unaffected. Removal of the 25-Hz component reduced the phonotactic scores. Patterns in which other frequency components exhibited a larger amplitude than the 25-Hz component were less attractive. However, the combination of an unattractive pulse period with the attractive modulation frequency of 25 Hz in a pattern revealed that such stimuli were unattractive despite the presence of the 25-Hz component. A comparison of the attractiveness of all patterns revealed that female crickets evaluated the duration of pulse period over a wide range of duty cycles. The combined evidence showed that pattern envelopes were processed in the time- and not in the spectral domain. |
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Authors:
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R Matthias Hennig |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology Volume: 195 ISSN: 1432-1351 ISO Abbreviation: J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol. Publication Date: 2009 Oct |
Date Detail:
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Created Date: 2009-09-28 Completed Date: 2009-10-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101141792 Medline TA: J Comp Physiol A Neuroethol Sens Neural Behav Physiol Country: Germany |
Other Details:
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Languages: eng Pagination: 971-87 Citation Subset: IM |
Affiliation:
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Behavioural Physiology Group, Department of Biology, Humboldt-Universität zu Berlin, Invalidenstr. 43, 10115 Berlin, Germany. matthias.hennig@biologie.hu-berlin.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Algorithms* Animals Discrimination (Psychology) Female Fourier Analysis* Gryllidae / physiology* Pattern Recognition, Physiological Periodicity* Signal Processing, Computer-Assisted* Sound Spectrography* Time Perception* Vocalization, Animal* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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