Self-motion induced environmental kinetopsia and pop-out illusion - Insight from a single case phenomenology

被引：0

作者：

Prabhakar, Appawamy Thirumal ^{[1
,2
,5
,7
]}

Ninan, George Abraham ^{[1
]}

Roy, Anupama ^{[1
,2
]}

Kumar, Sharath ^{[2
]}

Margabandhu, Kavitha ^{[2
]}

Michael, Jessica Priyadarshini ^{[1
,2
]}

Bal, Deepti ^{[2
]}

Mannam, Pavithra ^{[3
]}

Mckendrick, Allison M. ^{[4
]}

Carter, Olivia ^{[5
]}

Garrido, Marta I. ^{[5
,6
]}

机构：

[1] Christian Med Coll & Hosp, Cognit Neurosci & Clin Phenomenol Lab, Vellore, India

[2] Christian Med Coll & Hosp, Dept Neurol Sci, Vellore, India

[3] Christian Med Coll & Hosp, Dept Radiol, Vellore, India

[4] Univ Western Australia, Lions Eye Inst, Sch Allied Hlth, Div Optometry, Perth, Australia

[5] Univ Melbourne, Melbourne Sch Psychol Sci, Melbourne, Vic, Australia

[6] Univ Melbourne, Graeme Clark Inst Biomed Engn, Melbourne, Vic, Australia

[7] Christian Med Coll & Hosp, Dept Neurol Sci, Cognit Neurosci & Clin Phenomenol Lab, Vellore 632004, India

来源：

NEUROPSYCHOLOGIA | 2024年 / 196卷

关键词：

Optic flow; Flow parsing; Lesion; Pop -out illusion; Self -motion induced kinetopsia; Lesion network mapping; Resting -state fMRI; PERCEPTION; COMPENSATE; V6;

D O I：

10.1016/j.neuropsychologia.2024.108820

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Stable visual perception, while we are moving, depends on complex interactions between multiple brain regions. We report a patient with damage to the right occipital and temporal lobes who presented with a visual disturbance of inward movement of roadside buildings towards the centre of his visual field, that occurred only when he moved forward on his motorbike. We describe this phenomenon as "self-motion induced environmental kinetopsia". Additionally, he was identified to have another illusion, in which objects displayed on the screen, appeared to pop out of the background. Here, we describe the clinical phenomena and the behavioural tasks specifically designed to document and measure this altered visual experience. Using the methods of lesion mapping and lesion network mapping we were able to demonstrate disrupted functional connectivity in the areas that process flow-parsing such as V3A and V6 that may underpin self-motion induced environmental kinetopsia. Moreover, we suggest that altered connectivity to the regions that process environmental frames of reference such as retrosplenial cortex (RSC) might explain the pop-out illusion. Our case adds novel and convergent lesionbased evidence to the role of these brain regions in visual processing.

引用

页数：9