The early release of actions by loud sounds in muscles with distinct connectivity

Welber Marinovic; Aymar de Rugy; Stephan Riek; James R Tresilian

doi:10.1007/s00221-014-4074-y

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The early release of actions by loud sounds in muscles with distinct connectivity

Journal article

Peer reviewed

The early release of actions by loud sounds in muscles with distinct connectivity

Welber Marinovic, Aymar de Rugy, Stephan Riek and James R Tresilian

Experimental Brain Research, Vol.232(12), pp.3797-3802

2014

DOI: https://doi.org/10.1007/s00221-014-4074-y

PMID: 25142152

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https://doi.org/10.1007/s00221-014-4074-yView

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Abstract

Acoustic Stimulation

Humans

Male

Sound

Muscle, Skeletal - physiology

Reaction Time - physiology

Psychomotor Performance - physiology

Movement - physiology

Muscle Contraction - physiology

Adult

Female

Electromyography

Reflex, Startle - physiology

The presentation of an unexpected and loud auditory stimulus (LAS) during action preparation can trigger movement onset much sooner than normal. Recent research has attributed this effect to the activation of reticulospinal connections to the target muscles. To our knowledge, no studies have investigated the effects of LAS presentation in tasks requiring the simultaneous activation of muscles with different connectivity to motor areas of the brain. Here, we sought to establish the importance of muscle connectivity by asking participants to contract the orbicularis oris and abductor pollicis brevis muscles simultaneously. A LAS was randomly presented at 200 ms prior to the expected time of movement onset in an anticipatory timing task. We show that muscles controlled via bulbar connections to reticular formation can be triggered early by sound as much as muscles with spinal connections to the reticular formation.

Details

Title: The early release of actions by loud sounds in muscles with distinct connectivity
Authors: Welber Marinovic (Author) - University of Queensland
Aymar de Rugy (Author) - University of Queensland
Stephan Riek (Author) - University of Queensland
James R Tresilian (Author) - University of Warwick
Publication details: Experimental Brain Research, Vol.232(12), pp.3797-3802
Publisher: Springer
DOI: 10.1007/s00221-014-4074-y
ISSN: 1432-1106
PMID: 25142152
Organisation Unit: University of the Sunshine Coast, Queensland; Graduate Research School
Language: English
Record Identifier: 99472605502621
Output Type: Journal article

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

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