PMID- 32496013
OWN - NLM
STAT- MEDLINE
DCOM- 20210615
LR  - 20240329
IS  - 2162-3279 (Electronic)
VI  - 10
IP  - 7
DP  - 2020 Jul
TI  - Dissociated modulations of multivoxel activation patterns in the ventral and 
      dorsal visual pathways by the temporal dynamics of stimuli.
PG  - e01673
LID - 10.1002/brb3.1673 [doi]
LID - e01673
AB  - INTRODUCTION: Previous studies suggested temporal limitations of visual object 
      identification in the ventral pathway. Moreover, multivoxel pattern analyses 
      (MVPA) of fMRI activation have shown reliable encoding of various object 
      categories including faces and tools in the ventral pathway. By contrast, the 
      dorsal pathway is involved in reaching a target and grasping a tool, and quicker 
      in processing the temporal dynamics of stimulus change. However, little is known 
      about how activation patterns in both pathways may change according to the 
      temporal dynamics of stimulus change. METHODS: Here, we measured fMRI responses 
      of two consecutive stimuli with varying interstimulus intervals (ISIs), and we 
      compared how the two visual pathways respond to the dynamics of stimuli by using 
      MVPA and information-based searchlight mapping. RESULTS: We found that the 
      temporal dynamics of stimuli modulate responses of the two visual pathways in 
      opposite directions. Specifically, slower temporal dynamics (longer ISIs) led to 
      greater activity and better MVPA results in the ventral pathway. However, faster 
      temporal dynamics (shorter ISIs) led to greater activity and better MVPA results 
      in the dorsal pathway. CONCLUSIONS: These results are the first to show how 
      temporal dynamics of stimulus change modulated multivoxel fMRI activation pattern 
      change. And such temporal dynamic response function in different ROIs along the 
      two visual pathways may shed lights on understanding functional relationship and 
      organization of these ROIs.
CI  - (c) 2020 The Authors. Brain and Behavior published by Wiley Periodicals LLC.
FAU - Li, Jiaxin
AU  - Li J
AD  - School of Psychology, South China Normal University, Guangzhou, China.
FAU - Guo, Bingbing
AU  - Guo B
AD  - School of Psychology, South China Normal University, Guangzhou, China.
FAU - Cui, Lin
AU  - Cui L
AD  - School of Psychology, South China Normal University, Guangzhou, China.
FAU - Huang, Hong
AU  - Huang H
AD  - School of Psychology, South China Normal University, Guangzhou, China.
FAU - Meng, Ming
AU  - Meng M
AUID- ORCID: 0000-0003-2104-4988
AD  - School of Psychology, South China Normal University, Guangzhou, China.
AD  - Key Laboratory of Brain, Cognition and Education Sciences (South China Normal 
      University), Ministry of Education, Guangzhou, China.
AD  - Center for Studies of Psychological Application, South China Normal University, 
      Guangzhou, China.
AD  - Guangdong Key Laboratory of Mental Health and Cognitive Science, South China 
      Normal University, Guangzhou, China.
LA  - eng
GR  - 31700993/National Natural Science Foundation of China/
GR  - 31871136/National Natural Science Foundation of China/
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20200604
PL  - United States
TA  - Brain Behav
JT  - Brain and behavior
JID - 101570837
SB  - IM
MH  - Brain Mapping
MH  - *Magnetic Resonance Imaging
MH  - Pattern Recognition, Visual
MH  - *Visual Pathways/diagnostic imaging
PMC - PMC7375111
OTO - NOTNLM
OT  - MVPA
OT  - fMRI
OT  - face perception
OT  - temporal resolution
OT  - tool
OT  - visual pathways
COIS- None declared.
EDAT- 2020/06/05 06:00
MHDA- 2021/06/16 06:00
PMCR- 2020/06/04
CRDT- 2020/06/05 06:00
PHST- 2019/10/15 00:00 [received]
PHST- 2020/04/12 00:00 [revised]
PHST- 2020/04/30 00:00 [accepted]
PHST- 2020/06/05 06:00 [pubmed]
PHST- 2021/06/16 06:00 [medline]
PHST- 2020/06/05 06:00 [entrez]
PHST- 2020/06/04 00:00 [pmc-release]
AID - BRB31673 [pii]
AID - 10.1002/brb3.1673 [doi]
PST - ppublish
SO  - Brain Behav. 2020 Jul;10(7):e01673. doi: 10.1002/brb3.1673. Epub 2020 Jun 4.