Visual evoked magnetic fields to flash and pattern in 100 normal subjects

Richard A. Armstrong; A. Slaven; G.F. Harding

doi:10.1016/0042-6989(91)90180-D

Visual evoked magnetic fields to flash and pattern in 100 normal subjects

Richard A. Armstrong, A. Slaven, G.F. Harding

Research output: Contribution to journal › Article › peer-review

Abstract

The practicality of recording visual evoked magnetic fields in 100 subjects 15-87 yr of age using a single channel d.c. SQUID second order gradiometer in an unshielded environment was investigated. The pattern reversal response showed a major positive component between 90 and 120 msec (P100M) while the response to flash produced a major positive component between 90 and 140 msec (P2M). Latency norms of the P100M were more variable than the corresponding P100 and P2 visual evoked potentials. The latency of the P100M may show a steep increase with age in most subjects after about 55 yr whereas only a small trend of latency with age was detected for the flash P2M.

Original language	English
Pages (from-to)	1859-1864
Number of pages	6
Journal	Vision Research
Volume	31
Issue number	11
DOIs	https://doi.org/10.1016/0042-6989(91)90180-D
Publication status	Published - 1991

Keywords

neuromagnetism
norms
flash
pattern reversal
age

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10.1016/0042-6989(91)90180-D

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title = "Visual evoked magnetic fields to flash and pattern in 100 normal subjects",

abstract = "The practicality of recording visual evoked magnetic fields in 100 subjects 15-87 yr of age using a single channel d.c. SQUID second order gradiometer in an unshielded environment was investigated. The pattern reversal response showed a major positive component between 90 and 120 msec (P100M) while the response to flash produced a major positive component between 90 and 140 msec (P2M). Latency norms of the P100M were more variable than the corresponding P100 and P2 visual evoked potentials. The latency of the P100M may show a steep increase with age in most subjects after about 55 yr whereas only a small trend of latency with age was detected for the flash P2M.",

keywords = "neuromagnetism, norms, flash, pattern reversal, age",

author = "Armstrong, {Richard A.} and A. Slaven and G.F. Harding",

year = "1991",

doi = "10.1016/0042-6989(91)90180-D",

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T1 - Visual evoked magnetic fields to flash and pattern in 100 normal subjects

AU - Armstrong, Richard A.

AU - Slaven, A.

AU - Harding, G.F.

PY - 1991

Y1 - 1991

N2 - The practicality of recording visual evoked magnetic fields in 100 subjects 15-87 yr of age using a single channel d.c. SQUID second order gradiometer in an unshielded environment was investigated. The pattern reversal response showed a major positive component between 90 and 120 msec (P100M) while the response to flash produced a major positive component between 90 and 140 msec (P2M). Latency norms of the P100M were more variable than the corresponding P100 and P2 visual evoked potentials. The latency of the P100M may show a steep increase with age in most subjects after about 55 yr whereas only a small trend of latency with age was detected for the flash P2M.

AB - The practicality of recording visual evoked magnetic fields in 100 subjects 15-87 yr of age using a single channel d.c. SQUID second order gradiometer in an unshielded environment was investigated. The pattern reversal response showed a major positive component between 90 and 120 msec (P100M) while the response to flash produced a major positive component between 90 and 140 msec (P2M). Latency norms of the P100M were more variable than the corresponding P100 and P2 visual evoked potentials. The latency of the P100M may show a steep increase with age in most subjects after about 55 yr whereas only a small trend of latency with age was detected for the flash P2M.

KW - neuromagnetism

KW - norms

KW - flash

KW - pattern reversal

KW - age

UR - https://www.sciencedirect.com/science/article/pii/004269899190180D?via%3Dihub

U2 - 10.1016/0042-6989(91)90180-D

DO - 10.1016/0042-6989(91)90180-D

M3 - Article

SN - 0042-6989

VL - 31

SP - 1859

EP - 1864

JO - Vision Research

JF - Vision Research

IS - 11

ER -

Visual evoked magnetic fields to flash and pattern in 100 normal subjects

Abstract

Keywords

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