TY - GEN
T1 - Laterality Effect on Visual Orientation Processing
T2 - 17th International Conference on Complex Medical Engineering, CME 2023
AU - Wu, Fengxia
AU - Ren, Yanna
AU - Wu, Jinglong
AU - Wang, Meng
AU - Qu, Chang
AU - Yang, Jingjing
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Although previous studies have demonstrated visual spatial frequency processing in human, how orientation discrimination alter visual spatial frequency processing in temporal mechanism has not yet been elucidated completely. To investigate this, we design to performing a classical perceptual tasks of grating orientation discrimination. Participants were told to identify the orientation of the stimulus and pressed relevant button as quickly and accurately as possible. We assessed the diversity by measuring the magnitude of reaction times (RT) and event-related potential (ERP) results, which showed that the subject's response was strongly depended on spatial frequency (p < 0.05). The evoked brain activity during orientation discrimination was significant hemispheric asymmetry, the amplitude of middle stage (270-410 ms) for right hemisphere was larger than that for left hemisphere. In addition, the laterality effect was depended on spatial frequency, significant difference was found between low and high spatial frequency (p < 0.05). These results provide unique insight about how the brain processes visual orientation information and provide some basic data for human hemispheric asymmetry.
AB - Although previous studies have demonstrated visual spatial frequency processing in human, how orientation discrimination alter visual spatial frequency processing in temporal mechanism has not yet been elucidated completely. To investigate this, we design to performing a classical perceptual tasks of grating orientation discrimination. Participants were told to identify the orientation of the stimulus and pressed relevant button as quickly and accurately as possible. We assessed the diversity by measuring the magnitude of reaction times (RT) and event-related potential (ERP) results, which showed that the subject's response was strongly depended on spatial frequency (p < 0.05). The evoked brain activity during orientation discrimination was significant hemispheric asymmetry, the amplitude of middle stage (270-410 ms) for right hemisphere was larger than that for left hemisphere. In addition, the laterality effect was depended on spatial frequency, significant difference was found between low and high spatial frequency (p < 0.05). These results provide unique insight about how the brain processes visual orientation information and provide some basic data for human hemispheric asymmetry.
KW - event-related potential (ERP)
KW - orientation discrimination
KW - spatial frequency
KW - visual cortex
UR - http://www.scopus.com/inward/record.url?scp=85197733210&partnerID=8YFLogxK
U2 - 10.1109/CME60059.2023.10565521
DO - 10.1109/CME60059.2023.10565521
M3 - Conference contribution
AN - SCOPUS:85197733210
T3 - 2023 17th International Conference on Complex Medical Engineering, CME 2023
SP - 43
EP - 46
BT - 2023 17th International Conference on Complex Medical Engineering, CME 2023
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 3 November 2023 through 5 November 2023
ER -