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Interaction between allocentric and egocentric reference frames in deaf and hearing populations.
Neuropsychologia 2014; 54:68-76N

Abstract

Spatial position of an object can be represented in the human brain based on two types of reference frames: allocentric and egocentric. The perception/action hypothesis of the ventral/dorsal visual stream proposed that allocentric reference frame codes object positions relative to another object/background subserving conscious perception of the external world while egocentric reference frame codes object positions relative to the observer's body/body parts subserving goal-directed actions towards the objects. In three experiments of the present study, by asking congenitally deaf participants and hearing controls to perform allocentric and egocentric judgment tasks on the same stimulus set and by using the spatial congruency effect between allocentric and egocentric positions of the same target object to indicate the extent of influences between the two frames, we aimed to investigate whether the two frames and the potential interaction between them are altered after early deafness. Our results suggested that deaf participants' responses were significantly slower in the egocentric tasks as compared to hearing controls while the two groups showed comparable task performance in the allocentric tasks, indicating that egocentric reference frame was impaired after early deafness. Moreover, the pattern of interaction between the two frames was different between deaf and hearing groups: irrelevant egocentric positions caused more interference to allocentric processing than vice versa in the hearing group while the two frames caused equivalent interference to each other in the deaf group. Further control experiments suggested that the above effects were not caused by the impaired sense of balance in the congenitally deaf participants (via open-loop pointing test), and was independent of whether the speed of allocentric and egocentric processing was equivalent or not in the hearing group.

Authors+Show Affiliations

School of Education, Soochow University, Suzhou 215123, China.Center for Studies of Psychological Application and School of Psychology, South China Normal University, Guangzhou 510631, China.Center for Studies of Psychological Application and School of Psychology, South China Normal University, Guangzhou 510631, China.Department of Psychology, Northeast Normal University, Changchun 130024, China.Center for Studies of Psychological Application and School of Psychology, South China Normal University, Guangzhou 510631, China.Center for Studies of Psychological Application and School of Psychology, South China Normal University, Guangzhou 510631, China. Electronic address: qi.chen27@gmail.com.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24361477

Citation

Zhang, Ming, et al. "Interaction Between Allocentric and Egocentric Reference Frames in Deaf and Hearing Populations." Neuropsychologia, vol. 54, 2014, pp. 68-76.
Zhang M, Tan X, Shen L, et al. Interaction between allocentric and egocentric reference frames in deaf and hearing populations. Neuropsychologia. 2014;54:68-76.
Zhang, M., Tan, X., Shen, L., Wang, A., Geng, S., & Chen, Q. (2014). Interaction between allocentric and egocentric reference frames in deaf and hearing populations. Neuropsychologia, 54, pp. 68-76. doi:10.1016/j.neuropsychologia.2013.12.015.
Zhang M, et al. Interaction Between Allocentric and Egocentric Reference Frames in Deaf and Hearing Populations. Neuropsychologia. 2014;54:68-76. PubMed PMID: 24361477.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Interaction between allocentric and egocentric reference frames in deaf and hearing populations. AU - Zhang,Ming, AU - Tan,Xinyi, AU - Shen,Lu, AU - Wang,Aijun, AU - Geng,Shuang, AU - Chen,Qi, Y1 - 2013/12/19/ PY - 2013/09/23/received PY - 2013/11/27/revised PY - 2013/12/14/accepted PY - 2013/12/24/entrez PY - 2013/12/24/pubmed PY - 2014/8/15/medline KW - Allocentric KW - Congenitally deaf KW - Egocentric KW - Hearing KW - Spatial congruency SP - 68 EP - 76 JF - Neuropsychologia JO - Neuropsychologia VL - 54 N2 - Spatial position of an object can be represented in the human brain based on two types of reference frames: allocentric and egocentric. The perception/action hypothesis of the ventral/dorsal visual stream proposed that allocentric reference frame codes object positions relative to another object/background subserving conscious perception of the external world while egocentric reference frame codes object positions relative to the observer's body/body parts subserving goal-directed actions towards the objects. In three experiments of the present study, by asking congenitally deaf participants and hearing controls to perform allocentric and egocentric judgment tasks on the same stimulus set and by using the spatial congruency effect between allocentric and egocentric positions of the same target object to indicate the extent of influences between the two frames, we aimed to investigate whether the two frames and the potential interaction between them are altered after early deafness. Our results suggested that deaf participants' responses were significantly slower in the egocentric tasks as compared to hearing controls while the two groups showed comparable task performance in the allocentric tasks, indicating that egocentric reference frame was impaired after early deafness. Moreover, the pattern of interaction between the two frames was different between deaf and hearing groups: irrelevant egocentric positions caused more interference to allocentric processing than vice versa in the hearing group while the two frames caused equivalent interference to each other in the deaf group. Further control experiments suggested that the above effects were not caused by the impaired sense of balance in the congenitally deaf participants (via open-loop pointing test), and was independent of whether the speed of allocentric and egocentric processing was equivalent or not in the hearing group. SN - 1873-3514 UR - https://www.unboundmedicine.com/medline/citation/24361477/Interaction_between_allocentric_and_egocentric_reference_frames_in_deaf_and_hearing_populations_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0028-3932(13)00445-4 DB - PRIME DP - Unbound Medicine ER -