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Memory-based detection of rare sound feature combinations in anesthetized rats.
Neuroreport. 2006 Oct 02; 17(14):1561-4.N

Abstract

It is unclear whether the ability of the brain to discriminate rare from frequently repeated combinations of sound features is limited to the normal sleep/wake cycle. We recorded epidural auditory event-related potentials in urethane-anesthetized rats presented with rare tones ('deviants') interspersed with frequently repeated ones ('standards'). Deviants differed from standards either in frequency alone or in frequency combined with intensity. In both cases, deviants elicited event-related potentials exceeding in amplitude event-related potentials to standards between 76 and 108 ms from the stimulus onset, suggesting the independence of the underlying integrative and memory-based change detection mechanisms of the brain from the normal sleep/wake cycle. The relations of these event-related potentials to mismatch negativity and N1 in humans are addressed.

Authors+Show Affiliations

Department of Psychology, University of Jyvaäskylaä, Jyvaäskylaä, Finland. piia.astikainen@psyka.iyu.fiNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16957608

Citation

Astikainen, Piia, et al. "Memory-based Detection of Rare Sound Feature Combinations in Anesthetized Rats." Neuroreport, vol. 17, no. 14, 2006, pp. 1561-4.
Astikainen P, Ruusuvirta T, Wikgren J, et al. Memory-based detection of rare sound feature combinations in anesthetized rats. Neuroreport. 2006;17(14):1561-4.
Astikainen, P., Ruusuvirta, T., Wikgren, J., & Penttonen, M. (2006). Memory-based detection of rare sound feature combinations in anesthetized rats. Neuroreport, 17(14), 1561-4.
Astikainen P, et al. Memory-based Detection of Rare Sound Feature Combinations in Anesthetized Rats. Neuroreport. 2006 Oct 2;17(14):1561-4. PubMed PMID: 16957608.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Memory-based detection of rare sound feature combinations in anesthetized rats. AU - Astikainen,Piia, AU - Ruusuvirta,Timo, AU - Wikgren,Jan, AU - Penttonen,Markku, PY - 2006/9/8/pubmed PY - 2006/12/13/medline PY - 2006/9/8/entrez SP - 1561 EP - 4 JF - Neuroreport JO - Neuroreport VL - 17 IS - 14 N2 - It is unclear whether the ability of the brain to discriminate rare from frequently repeated combinations of sound features is limited to the normal sleep/wake cycle. We recorded epidural auditory event-related potentials in urethane-anesthetized rats presented with rare tones ('deviants') interspersed with frequently repeated ones ('standards'). Deviants differed from standards either in frequency alone or in frequency combined with intensity. In both cases, deviants elicited event-related potentials exceeding in amplitude event-related potentials to standards between 76 and 108 ms from the stimulus onset, suggesting the independence of the underlying integrative and memory-based change detection mechanisms of the brain from the normal sleep/wake cycle. The relations of these event-related potentials to mismatch negativity and N1 in humans are addressed. SN - 0959-4965 UR - https://www.unboundmedicine.com/medline/citation/16957608/Memory_based_detection_of_rare_sound_feature_combinations_in_anesthetized_rats_ L2 - https://doi.org/10.1097/01.wnr.0000233097.13032.7d DB - PRIME DP - Unbound Medicine ER -