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dc.contributor.authorMcInnes, Aaron
dc.contributor.authorCorti, Emily
dc.contributor.authorTresilian, J.R.
dc.contributor.authorLipp, Ottmar
dc.contributor.authorMarinovic, Welber
dc.date.accessioned2020-05-15T02:48:53Z
dc.date.available2020-05-15T02:48:53Z
dc.date.issued2020
dc.identifier.citationMcInnes, A.N. and Corti, E.J. and Tresilian, J.R. and Lipp, O.V. and Marinovic, W. 2020. Neural gain induced by startling acoustic stimuli is additive to preparatory activation. Psychophysiology. 57 (3): Article No. e13493.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/79230
dc.identifier.doi10.1111/psyp.13493
dc.description.abstract

© 2019 Society for Psychophysiological Research

Loud acoustic stimuli presented during movement preparation can shorten reaction time and increase response forcefulness. We examined how efferent connectivity of an agonist muscle to reticulospinal and corticospinal pathways, and the level of prepared movement force, affect reaction time and movement execution when the motor response is triggered by an intense acoustic stimulus. In Experiment 1, participants executed ballistic wrist flexion and extension movements of low and high force in response to visual stimuli. A loud acoustic stimulus (LAS; 105 dBa) was presented simultaneously with the visual imperative stimulus in probe trials. In Experiment 2, participants executed ballistic wrist flexion movements ranging from 10%–50% of maximum voluntary contraction with a LAS presented in probe trials. The shortening of response initiation was not affected by movement type (flexion or extension) or prepared movement force. Enhancement of response magnitude, however, was proportionally greater for low force movements and for the flexor muscle. Changes in peak force induced by the intense acoustic stimulus indicated that the neural activity introduced to motor program circuits by acoustic stimulation is additive to the voluntary neural activity that occurs due to movement preparation, rather than multiplicative.

dc.languageEnglish
dc.publisherWILEY
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/DP160102001
dc.subjectSocial Sciences
dc.subjectScience & Technology
dc.subjectLife Sciences & Biomedicine
dc.subjectPsychology, Biological
dc.subjectNeurosciences
dc.subjectPhysiology
dc.subjectPsychology
dc.subjectPsychology, Experimental
dc.subjectNeurosciences & Neurology
dc.subjectforce
dc.subjectmotor control
dc.subjectmovement preparation
dc.subjectmuscle
dc.subjectreaction time
dc.subjectStartReact effect
dc.subjectREACTION-TIME
dc.subjectPYRAMIDAL TRACT
dc.subjectMUSCLE-ACTIVITY
dc.subjectMOTOR ACTIONS
dc.subjectMOVEMENT
dc.subjectFINGER
dc.subjectRESPONSES
dc.subjectHEALTHY
dc.subjectSOUNDS
dc.subjectFORCE
dc.titleNeural gain induced by startling acoustic stimuli is additive to preparatory activation
dc.typeJournal Article
dcterms.source.volume57
dcterms.source.number3
dcterms.source.issn0048-5772
dcterms.source.titlePsychophysiology
dc.date.updated2020-05-15T02:48:52Z
curtin.note

This is the peer reviewed version of the following article: McInnes, A.N. and Corti, E.J. and Tresilian, J.R. and Lipp, O.V. and Marinovic, W. 2020. Neural gain induced by startling acoustic stimuli is additive to preparatory activation. Psychophysiology. 57 (3): ARTN e13493, which has been published in final form at https ://doi.org/10.1111/psyp.13493 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

curtin.departmentSchool of Psychology
curtin.accessStatusOpen access
curtin.facultyFaculty of Health Sciences
curtin.contributor.orcidLipp, Ottmar [0000-0001-6734-8608]
curtin.contributor.orcidMarinovic, Welber [0000-0002-2472-7955]
curtin.contributor.orcidMcInnes, Aaron [0000-0001-8104-3798]
curtin.contributor.orcidCorti, Emily [0000-0003-3130-6611]
curtin.contributor.researcheridLipp, Ottmar [A-1254-2007]
curtin.contributor.researcheridMarinovic, Welber [F-1755-2010]
curtin.identifier.article-numberARTN e13493
dcterms.source.eissn1469-8986
curtin.contributor.scopusauthoridLipp, Ottmar [7004506548]
curtin.contributor.scopusauthoridMarinovic, Welber [24067727300]


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