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Face distortions in prosopometamorphopsia provide new insights into the organization of face perception. Neuropsychologia 2023; 182:108517. [PMID: 36813107 DOI: 10.1016/j.neuropsychologia.2023.108517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 10/08/2022] [Accepted: 02/13/2023] [Indexed: 02/22/2023]
Abstract
Prosopometamorphopsia (PMO) is a striking condition of visual perception in which facial features appear distorted, for example drooping, swelling, or twisting. Although numerous cases have been reported, few of those investigations have carried out formal testing motivated by theories of face perception. However, because PMO involves conscious visual distortions to faces which participants can report, it can be used to probe fundamental questions about face representations. Here we review cases of PMO that address theoretical questions in visual neuroscience including face specificity, inverted face processing, the importance of the vertical midline, dissociable representations for each half of the face, hemispheric specialization, the relationship between face recognition and conscious face perception, and the reference frames that face representations are embedded within. Finally, we list and touch upon eighteen open questions that make clear how much is left to learn about PMO and the potential it has to provide important advances in face perception.
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Ogawa K, Akimoto T, Takahashi K, Hara M, Morita A, Kamei S, Nakajima H, Fujishiro M, Suzuki Y, Soma M, Shikata E, Futamura A, Kawamura M. A case of prosopometamorphopsia caused by infarction of the splenium of the corpus callosum and major forceps. Neurocase 2020; 26:264-269. [PMID: 32715920 DOI: 10.1080/13554794.2020.1797819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
An adult female complained of enlargement of right eyes in other people. Diffusion-weighted imaging detected an abnormal high-intensity area in the region from the splenium of the corpus callosum to the major forceps on the right side. The patient reported that right eyes appeared larger in size, which suggested prosopometamorphopsia. Adichotic listening test identified left-ear deficit. Acombination of prosopometamorphopsia and left-ear deficit was not identified in the reported patients. Prosopometamorphopsia in most of the reported patients included the eye as did that in our patient. This result suggested the importance of information on the eye in recognizing faces.
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Affiliation(s)
- Katsuhiko Ogawa
- Division of Neurology, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Takayoshi Akimoto
- Division of Neurology, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Keiko Takahashi
- Division of Neurology, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Makoto Hara
- Division of Neurology, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Akihiko Morita
- Division of Neurology, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Satoshi Kamei
- Division of Neurology, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Hideto Nakajima
- Division of Neurology, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Midori Fujishiro
- Division of Diabetes and Metabolic Diseases, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Yutaka Suzuki
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Masayoshi Soma
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Elisa Shikata
- Department of Clinical Laboratory Medicine, Nihon University School of Medicine , Tokyo, Japan
| | - Akinori Futamura
- Department of Neurology, Showa University School of Medicine , Tokyo, Japan
| | - Mitsuru Kawamura
- Department of Neurology, Showa University School of Medicine , Tokyo, Japan
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Jung BK, Kim KH, Lee HC, Lee JT, Hwang YH, Kim YW. Prosopometamorphopsia in Acute Ischemic Stroke. ACTA ACUST UNITED AC 2018. [DOI: 10.17340/jkna.2018.1.9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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