dc.contributor.author
Esmeyer, Marlon F.
dc.contributor.author
Schmidt, Timo T.
dc.contributor.author
Blankenburg, Felix
dc.date.accessioned
2025-06-17T14:05:51Z
dc.date.available
2025-06-17T14:05:51Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/47929
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-47647
dc.description.abstract
Neuroscientific research has shown that perceptual decision-making occurs in brain regions that are associated with the required motor response. Recent functional magnetic resonance imaging (fMRI) studies that dissociated decisions from coinciding processes, such as the motor response, partly challenge this, indicating that perceptual decisions are represented in an abstract or sensory-specific manner that might vary across sensory modalities. However, comparisons across sensory modalities have been difficult since most task designs differ not only in modality but also in effectors, motor response, and level of abstraction. Here, we describe an fMRI experiment where participants compared frequencies of two sequentially presented visual flicker stimuli in a delayed match-to-comparison task, which controlled for motor responses and stimulus sequence. A whole-brain searchlight support vector machine analysis of multi voxel patterns was used to identify brain regions containing information on perceptual decisions. Furthermore, a conjunction analysis with data from an analogue vibrotactile study was conducted for a comparison between visual and tactile decision-making processes. Both analyses revealed above-chance decoding accuracies in the left dorsal premotor cortex (PMd) as well as in the left intraparietal sulcus (IPS). While previous primate and human imaging research have implicated these regions in transforming sensory information into action, our findings indicate that the IPS processes abstract decision signals while the PMd represents an effector-dependent, but motor response independent encoding of perceptual decisions that is similar across sensory domains.
en
dc.format.extent
14 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
multisensory decision-making
en
dc.subject
effector-dependent
en
dc.subject
delayed match-to- comparison
en
dc.subject
multi-voxel pattern analysis
en
dc.subject
cross-modal conjunction analysis
en
dc.subject.ddc
600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
dc.title
Effector-dependent neural representations of perceptual decisions independent of motor actions and sensory modalities
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
IMAG.a.11
dcterms.bibliographicCitation.doi
10.1162/IMAG.a.11
dcterms.bibliographicCitation.journaltitle
Imaging Neuroscience
dcterms.bibliographicCitation.volume
3
dcterms.bibliographicCitation.url
https://doi.org/10.1162/IMAG.a.11
refubium.affiliation
Erziehungswissenschaft und Psychologie
refubium.affiliation.other
Arbeitsbereich Neurocomputation and Neuroimaging Unit

refubium.funding
Publikationsfonds FU
refubium.note.author
Gefördert aus Open-Access-Mitteln der Freien Universität Berlin.
de
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access