The neurophysiologic significance of frontal negativity in pattern- reversal visual-evoked potentials

S. Kurita-Tashima, Shozo Tobimatsu, M. Nakayama-Hiromatsu, M. Kato

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

To demonstrate that the frontal negative potential (N100) does exist in response to pattern-reversal visual stimulation and its independence of the dipole source from the major occipital positive potential (P100), modifications of P100 and N100 with changes in the check size, contrast, and luminance of the stimulus pattern were studied in healthy subjects. Eight different check sizes (10-90 min of arc), eight different contrast levels (10-85%), and six different luminance levels (11-180 cd/m2) were used. Changing the stimulus conditions modified the latencies and amplitudes of P100 and N100 in different ways. P100 latency had a band pass spatial tuning function against check size; N100 latency did not. P100 was sensitive to changes in contrast and luminance; N100 was less dependent on these parameters. These findings suggest the existence of different physiologic properties for N100. Consequently, frontal negativity is considered to be independent of P100.

Original languageEnglish
Pages (from-to)2423-2428
Number of pages6
JournalInvestigative Ophthalmology and Visual Science
Volume33
Issue number8
Publication statusPublished - Jan 1 1992

Fingerprint

Photic Stimulation
Visual Evoked Potentials
Healthy Volunteers

All Science Journal Classification (ASJC) codes

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

Cite this

The neurophysiologic significance of frontal negativity in pattern- reversal visual-evoked potentials. / Kurita-Tashima, S.; Tobimatsu, Shozo; Nakayama-Hiromatsu, M.; Kato, M.

In: Investigative Ophthalmology and Visual Science, Vol. 33, No. 8, 01.01.1992, p. 2423-2428.

Research output: Contribution to journalArticle

@article{8481521e7d3a4871bca21358d9436daf,
title = "The neurophysiologic significance of frontal negativity in pattern- reversal visual-evoked potentials",
abstract = "To demonstrate that the frontal negative potential (N100) does exist in response to pattern-reversal visual stimulation and its independence of the dipole source from the major occipital positive potential (P100), modifications of P100 and N100 with changes in the check size, contrast, and luminance of the stimulus pattern were studied in healthy subjects. Eight different check sizes (10-90 min of arc), eight different contrast levels (10-85{\%}), and six different luminance levels (11-180 cd/m2) were used. Changing the stimulus conditions modified the latencies and amplitudes of P100 and N100 in different ways. P100 latency had a band pass spatial tuning function against check size; N100 latency did not. P100 was sensitive to changes in contrast and luminance; N100 was less dependent on these parameters. These findings suggest the existence of different physiologic properties for N100. Consequently, frontal negativity is considered to be independent of P100.",
author = "S. Kurita-Tashima and Shozo Tobimatsu and M. Nakayama-Hiromatsu and M. Kato",
year = "1992",
month = "1",
day = "1",
language = "English",
volume = "33",
pages = "2423--2428",
journal = "Investigative Ophthalmology and Visual Science",
issn = "0146-0404",
publisher = "Association for Research in Vision and Ophthalmology Inc.",
number = "8",

}

TY - JOUR

T1 - The neurophysiologic significance of frontal negativity in pattern- reversal visual-evoked potentials

AU - Kurita-Tashima, S.

AU - Tobimatsu, Shozo

AU - Nakayama-Hiromatsu, M.

AU - Kato, M.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - To demonstrate that the frontal negative potential (N100) does exist in response to pattern-reversal visual stimulation and its independence of the dipole source from the major occipital positive potential (P100), modifications of P100 and N100 with changes in the check size, contrast, and luminance of the stimulus pattern were studied in healthy subjects. Eight different check sizes (10-90 min of arc), eight different contrast levels (10-85%), and six different luminance levels (11-180 cd/m2) were used. Changing the stimulus conditions modified the latencies and amplitudes of P100 and N100 in different ways. P100 latency had a band pass spatial tuning function against check size; N100 latency did not. P100 was sensitive to changes in contrast and luminance; N100 was less dependent on these parameters. These findings suggest the existence of different physiologic properties for N100. Consequently, frontal negativity is considered to be independent of P100.

AB - To demonstrate that the frontal negative potential (N100) does exist in response to pattern-reversal visual stimulation and its independence of the dipole source from the major occipital positive potential (P100), modifications of P100 and N100 with changes in the check size, contrast, and luminance of the stimulus pattern were studied in healthy subjects. Eight different check sizes (10-90 min of arc), eight different contrast levels (10-85%), and six different luminance levels (11-180 cd/m2) were used. Changing the stimulus conditions modified the latencies and amplitudes of P100 and N100 in different ways. P100 latency had a band pass spatial tuning function against check size; N100 latency did not. P100 was sensitive to changes in contrast and luminance; N100 was less dependent on these parameters. These findings suggest the existence of different physiologic properties for N100. Consequently, frontal negativity is considered to be independent of P100.

UR - http://www.scopus.com/inward/record.url?scp=0026695490&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026695490&partnerID=8YFLogxK

M3 - Article

C2 - 1634339

AN - SCOPUS:0026695490

VL - 33

SP - 2423

EP - 2428

JO - Investigative Ophthalmology and Visual Science

JF - Investigative Ophthalmology and Visual Science

SN - 0146-0404

IS - 8

ER -