Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/93240
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Rehabilitation Sciences | en_US |
dc.contributor | University Research Facility in Behavioral and Systems Neuroscience | en_US |
dc.creator | Derbie, AY | en_US |
dc.creator | Chau, B | en_US |
dc.creator | Lam, B | en_US |
dc.creator | Fang, YH | en_US |
dc.creator | Ting, KH | en_US |
dc.creator | Wong, CYH | en_US |
dc.creator | Tao, J | en_US |
dc.creator | Chen, LD | en_US |
dc.creator | Chan, CCH | en_US |
dc.date.accessioned | 2022-06-10T07:02:10Z | - |
dc.date.available | 2022-06-10T07:02:10Z | - |
dc.identifier.uri | http://hdl.handle.net/10397/93240 | - |
dc.language.iso | en | en_US |
dc.publisher | Springer | en_US |
dc.rights | © Springer Science+Business Media, LLC, part of Springer Nature 2021 | en_US |
dc.rights | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use(https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms), but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s10548-021-00821-9 | en_US |
dc.subject | Allocentric spatial coding | en_US |
dc.subject | Attention | en_US |
dc.subject | Egocentric spatial coding | en_US |
dc.subject | fNIRS | en_US |
dc.subject | Frames of reference | en_US |
dc.subject | IPL | en_US |
dc.subject | SFG | en_US |
dc.subject | Top-down attention | en_US |
dc.title | Cortical hemodynamic response associated with spatial coding : a near-infrared spectroscopy study | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 207 | en_US |
dc.identifier.epage | 220 | en_US |
dc.identifier.volume | 34 | en_US |
dc.identifier.issue | 2 | en_US |
dc.identifier.doi | 10.1007/s10548-021-00821-9 | en_US |
dcterms.abstract | Allocentric and egocentric are two types of spatial coding. Previous studies reported the dorsal attention network’s involvement in both types. To eliminate possible paradigm-specific confounds in the results, this study employed fine-grained cue-to-target paradigm to dissociate allocentric (aSC) and egocentric (eSC) spatial coding. Twenty-two participants completed a custom visuospatial task, and changes in the concentration of oxygenated hemoglobin (O2-Hb) were recorded using functional near-infrared spectroscopy (fNIRS). The least absolute shrinkage and selection operator-regularized principal component (LASSO-RPC) algorithm was used to identify cortical sites that predicted the aSC and eSC conditions’ reaction times. Significant changes in O2-Hb concentration in the right inferior parietal lobule (IPL) and post-central gyrus regions were common in both aSC and eSC. Results of inter-channel correlations further substantiate cortical activities in both conditions were predominantly over the right parieto-frontal areas. Together with right superior frontal gyrus areas be the reaction time neural correlates, the results suggest top-down attention and response-mapping processes are common to both spatial coding types. Changes unique to aSC were in clusters over the right intraparietal sulcus, right temporo-parietal junction, and left IPL. With the left pre-central gyrus region, be the reaction time neural correlate, aSC is likely to involve more orienting attention, updating of spatial information, and object-based response selection and inhibition than eSC. Future studies will use other visuospatial task designs for testing the robustness of the findings on spatial coding processes. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Brain topography, Mar. 2021, v. 34, no. 2, p. 207-220 | en_US |
dcterms.isPartOf | Brain topography | en_US |
dcterms.issued | 2021-03 | - |
dc.identifier.scopus | 2-s2.0-85099981208 | - |
dc.identifier.pmid | 33484379 | - |
dc.identifier.eissn | 0896-0267 | en_US |
dc.description.validate | 202206 bcch | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | RS-0076 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingText | GRF | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 53328380 | - |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Derbie_Cortical_Hemodynamic_Response.pdf | Pre-Published version | 897.18 kB | Adobe PDF | View/Open |
Page views
57
Last Week
0
0
Last month
Citations as of May 19, 2024
Downloads
115
Citations as of May 19, 2024
SCOPUSTM
Citations
6
Citations as of May 16, 2024
WEB OF SCIENCETM
Citations
6
Citations as of May 16, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.