Habituation-like effects cause a significant decrease in response in MRI neuroactivation duping visual stimulation

Barrie Condom; Robert McFadzean; Donald M. Hadley; Michael S. Bradnam; Uma Shahani

doi:10.1016/S0042-6989(97)85231-5

Habituation-like effects cause a significant decrease in response in MRI neuroactivation duping visual stimulation

Barrie Condom, Robert McFadzean, Donald M. Hadley, Michael S. Bradnam, Uma Shahani

Vision Sciences

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

20 Citations (Scopus)

Abstract

A wide range of rest/stimulus cycle durations (40-360 sec) is reported to have been used by various groups for MRI neuroactivation studies of the visual cortex. In this paper we demonstrate a clear habituation-like response for longer cycle durations which results in a halving of apparent activation between cycle durations of 138 and 276 sec. This has important implications, not only in terms of optimizing the technique, but also in providing an insight into the underlying physiological mechanisms.

Original language	English
Pages (from-to)	1243-1247
Number of pages	5
Journal	Vision Research
Volume	37
Issue number	9
DOIs	https://doi.org/10.1016/S0042-6989(97)85231-5
Publication status	Published - May 1997

Keywords

autoregulation
habituation
MRI
neuroactivation
visual

ASJC Scopus subject areas

Ophthalmology
Sensory Systems

Documents and Links

10.1016/S0042-6989(97)85231-5

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title = "Habituation-like effects cause a significant decrease in response in MRI neuroactivation duping visual stimulation",

abstract = "A wide range of rest/stimulus cycle durations (40-360 sec) is reported to have been used by various groups for MRI neuroactivation studies of the visual cortex. In this paper we demonstrate a clear habituation-like response for longer cycle durations which results in a halving of apparent activation between cycle durations of 138 and 276 sec. This has important implications, not only in terms of optimizing the technique, but also in providing an insight into the underlying physiological mechanisms.",

keywords = "autoregulation, habituation, MRI, neuroactivation, visual",

author = "Barrie Condom and Robert McFadzean and Hadley, {Donald M.} and Bradnam, {Michael S.} and Uma Shahani",

note = "Funding Information: The authors would like to thank the Institute of Neurological Sciences Research Trust for funding the purchase of equipment for stimuli generation and projection. Dr Bradnam was funded by grants from the Wellcome Trust, the Scottish Office Home and Health Department and the Ulverscroft Foundation.",

year = "1997",

month = may,

doi = "10.1016/S0042-6989(97)85231-5",

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T1 - Habituation-like effects cause a significant decrease in response in MRI neuroactivation duping visual stimulation

AU - Condom, Barrie

AU - McFadzean, Robert

AU - Hadley, Donald M.

AU - Bradnam, Michael S.

AU - Shahani, Uma

N1 - Funding Information: The authors would like to thank the Institute of Neurological Sciences Research Trust for funding the purchase of equipment for stimuli generation and projection. Dr Bradnam was funded by grants from the Wellcome Trust, the Scottish Office Home and Health Department and the Ulverscroft Foundation.

PY - 1997/5

Y1 - 1997/5

N2 - A wide range of rest/stimulus cycle durations (40-360 sec) is reported to have been used by various groups for MRI neuroactivation studies of the visual cortex. In this paper we demonstrate a clear habituation-like response for longer cycle durations which results in a halving of apparent activation between cycle durations of 138 and 276 sec. This has important implications, not only in terms of optimizing the technique, but also in providing an insight into the underlying physiological mechanisms.

AB - A wide range of rest/stimulus cycle durations (40-360 sec) is reported to have been used by various groups for MRI neuroactivation studies of the visual cortex. In this paper we demonstrate a clear habituation-like response for longer cycle durations which results in a halving of apparent activation between cycle durations of 138 and 276 sec. This has important implications, not only in terms of optimizing the technique, but also in providing an insight into the underlying physiological mechanisms.

KW - autoregulation

KW - habituation

KW - MRI

KW - neuroactivation

KW - visual

U2 - 10.1016/S0042-6989(97)85231-5

DO - 10.1016/S0042-6989(97)85231-5

M3 - Article

C2 - 9196740

AN - SCOPUS:0030909715

SN - 0042-6989

VL - 37

SP - 1243

EP - 1247

JO - Vision Research

JF - Vision Research

IS - 9

ER -

Habituation-like effects cause a significant decrease in response in MRI neuroactivation duping visual stimulation

Abstract

Keywords

ASJC Scopus subject areas

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