Triggering Mechanisms for Motor Actions: The Effects of Expectation on Reaction Times to Intense Acoustic Stimuli

Li-Ann Leow; Aya Uchida; Jamie-Lee Egberts; Stephan Riek; Ottmar V Lipp; James Tresilian; Welber Marinovic

doi:10.1016/j.neuroscience.2018.10.008

Back

Triggering Mechanisms for Motor Actions: The Effects of Expectation on Reaction Times to Intense Acoustic Stimuli

Journal article

Peer reviewed

Triggering Mechanisms for Motor Actions: The Effects of Expectation on Reaction Times to Intense Acoustic Stimuli

Li-Ann Leow, Aya Uchida, Jamie-Lee Egberts, Stephan Riek, Ottmar V Lipp, James Tresilian and Welber Marinovic

Neuroscience, Vol.393, pp.226-235

2018

DOI: https://doi.org/10.1016/j.neuroscience.2018.10.008

PMID: 30326292

Files and links (1)

url

https://dx.doi.org/10.1016/j.neuroscience.2018.10.008View

Published Version

Abstract

StartReact effect

reaction time

response triggering

movement preparation

Motor actions can be released much sooner than normal when the go-signal is of very high intensity (>100 dBa). Although statistical evidence from individual studies has been mixed, it has been assumed that sternocleidomastoid (SCM) muscle activity could be used to distinguish between two neural circuits involved in movement triggering. We summarized meta-analytically the available evidence for this hypothesis, comparing the difference in premotor reaction time (RT) of actions where SCM activity was elicited (SCM+ trials) by loud acoustic stimuli against trials in which it was absent (SCM− trials). We found ten studies, all reporting comparisons between SCM+ and SCM− trials. Our mini meta-analysis showed that premotor RTs are faster in SCM+ than in SCM− trials, but the effect can be confounded by the variability of the foreperiods employed. We present experimental data showing that foreperiod predictability can induce differences in RT that would be of similar size to those attributed to the activation of different neurophysiological pathways to trigger prepared actions. We discuss plausible physiological mechanisms that would explain differences in premotor RTs between SCM+ and SCM− trials.

Details

Title: Triggering Mechanisms for Motor Actions: The Effects of Expectation on Reaction Times to Intense Acoustic Stimuli
Authors: Li-Ann Leow (Author) - University of Queensland
Aya Uchida (Author) - University of Queensland
Jamie-Lee Egberts (Author) - University of Queensland
Stephan Riek (Author) - University of Queensland
Ottmar V Lipp (Author) - Curtin University
James Tresilian (Author) - University of Warwick
Welber Marinovic (Author) - Curtin University
Publication details: Neuroscience, Vol.393, pp.226-235
Publisher: Elsevier Ltd
DOI: 10.1016/j.neuroscience.2018.10.008
ISSN: 1873-7544
PMID: 30326292
Organisation Unit: University of the Sunshine Coast, Queensland; Graduate Research School
Language: English
Record Identifier: 99475108902621
Output Type: Journal article

Metrics

21 Record Views

21 Times Cited - Web of Science

See more details

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Neurosciences

UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

Source: InCites