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N1-P2 Evoked Response as a Measure for Short-Term Visual Memory

Palaniappan, Ramaswamy, Raveendran, P. (2002) N1-P2 Evoked Response as a Measure for Short-Term Visual Memory. In: Proceedings of the 6th Joint Conference on Information Sciences, JCIS 2002. 6. pp. 545-548. ISBN 0-9707890-1-7. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)

Abstract

We investigate the relationship of N1-P2 evoked response (peak-to-peak amplitude and time interval) with short-term visual memory in humans. Visual evoked responses obtained from 20 subjects (10 non-amnesic alcoholics and 10 non-alcoholics) are extracted from channel P8 referenced to channel Cz during the presentation of modified delayed matching-to-sample visual task using Snodgrass and Vanderwart picture set. Our results indicate that N1-P2 amplitudes are higher for non-matching (novel) stimuli as compared to matching stimuli for all the subjects. N1-P2 time interval is also shorter for the case of matching stimuli. This indicates that information processing is increased for the non-matching stimuli as compared to matching stimuli. These results are quite consistent with a number of related studies and we conclude that N1-P2 is related to short-term visual memory involved during object recognition. The results also indicate that N1-P2 amplitude is higher for non-alcoholics as compared to alcoholics, which indicates that some form of memory impairment exist in alcoholics.

Item Type: Conference or workshop item (Paper)
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Proc. Jt. Conf. Inf. Sci. [Field not mapped to EPrints] AD - Dept. of Electrical, Engineering Faculty, University of Malaya, 50603 Kuala Lumpur, Malaysia [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints] M3 - Conference Paper [Field not mapped to EPrints] A4 - Association for Intelligent Machinery; Information Sciences Journal; Duke University; Tamkang University [Field not mapped to EPrints] C3 - Proceedings of the Joint Conference on Information Sciences [Field not mapped to EPrints]
Uncontrolled keywords: Bioelectric potentials, Computer software, Functional neural stimulation, Object recognition, Pattern matching, Vision, Short-term visual memory, Visual evoked potentials (VEP), Neurology
Divisions: Faculties > Sciences > School of Computing
Faculties > Sciences > School of Computing > Data Science
Depositing User: Palaniappan Ramaswamy
Date Deposited: 15 Dec 2018 17:59 UTC
Last Modified: 30 May 2019 08:29 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/70761 (The current URI for this page, for reference purposes)
Palaniappan, Ramaswamy: https://orcid.org/0000-0001-5296-8396
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