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Glaucoma Affects Viewing Distance for Recognition of Sex and Facial Expression
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In: ISSN: 0146-0404 ; EISSN: 1552-5783 ; Investigative Ophthalmology & Visual Science ; https://hal.univ-grenoble-alpes.fr/hal-01911096 ; Investigative Ophthalmology & Visual Science, Association for Research in Vision and Ophthalmology, 2018, 59 (12), ⟨10.1167/iovs.18-24875⟩ (2018)
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Abstract:
International audience ; PURPOSE. To measure the distance for sex and facial expression recognition in patients with glaucoma.METHODS. Sixteen patients with open-angle glaucoma, 16 age-matched controls, and 12 young controls participated. During each trial, a face covering 0.36° X 0.58°, simulating the angular size of a face viewed at 20 m, was presented centrally. The angular size increased automatically by steps of 5 cm, simulating the face moving progressively closer. The participants were asked to stop the progression with a keypress, first, when they were able to recognize the sex, and second, when they were able to recognize the facial expression (angry, happy, neutral). We measured the threshold equivalent viewing distance to recognize the sex and the facial expression.RESULTS. Participants with glaucoma, both those with and without reduced central acuity, required a shorter viewing distance (i.e., a larger face) than did controls to recognize both the sex (by 2.59 m, F1,30 = 8.7, P < 0.006) and the facial expression (by 3.64 m, F1,30 = 14, P < 0.001). No significant difference was found between younger and older controls.CONCLUSIONS. Face perception is a skill that is reliant on central vision. Our behavioral results are consistent with the hypothesis of reduced central sensitivity in glaucoma. We suggest that the necessity to view larger faces in patients might result from a higher sensitivity to crowding that increases the difficulty to perceive the relevant features for recognition of both sex and facial expressions, akin to normal peripheral vision.
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Keyword:
[SCCO.NEUR]Cognitive science/Neuroscience; [SCCO.PSYC]Cognitive science/Psychology; central vision; distance; face perception; glaucoma; size
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URL: https://doi.org/10.1167/iovs.18-24875
https://hal.univ-grenoble-alpes.fr/hal-01911096
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| 2 |
Dyslexia in a French-Spanish bilingual girl: Behavioural and neural modulations following a visual-attention span intervention
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In: Society for the Scientific Study of Reading ; https://hal.univ-grenoble-alpes.fr/hal-01998723 ; Society for the Scientific Study of Reading, Jul 2014, Santa Fe, United States (2014)
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Dyslexia in a French-Spanish bilingual girl: Behavioural and neural modulations following a visual attention span intervention.
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In: ISSN: 0010-9452 ; Cortex ; https://hal.archives-ouvertes.fr/hal-00965217 ; Cortex, Elsevier, 2014, 53, pp.120-145. ⟨10.1016/j.cortex.2013.11.006⟩ (2014)
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Neural dissociation of phonological and visual attention span disorders in developmental dyslexia: FMRI evidence from two case reports.
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In: ISSN: 0093-934X ; EISSN: 1090-2155 ; Brain and Language ; https://hal.archives-ouvertes.fr/hal-00798603 ; Brain and Language, Elsevier, 2012, 120 (3), pp.381-94. ⟨10.1016/j.bandl.2011.12.015⟩ (2012)
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Auditory and visual stream segregation in children and adults: an assessment of the amodality assumption of the 'sluggish attentional shifting' theory of dyslexia.
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In: ISSN: 0006-8993 ; EISSN: 0006-8993 ; Brain Research ; https://hal.archives-ouvertes.fr/hal-00828654 ; Brain Research, Elsevier, 2009, 1302, pp.132-47. ⟨10.1016/j.brainres.2009.07.037⟩ (2009)
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Functional MRI approach for assessing hemispheric predominance of regions activated by a phonological and a semantic task.
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In: ISSN: 0720-048X ; European Journal of Radiology ; https://hal.archives-ouvertes.fr/hal-00798632 ; European Journal of Radiology, Elsevier, 2007, pp.63(2):274-85 (2007)
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| 11 |
Functional MRI approach for assessing hemispheric predominance of regions activated by a phonological and a semantic task
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In: ISSN: 0720-048X ; European Journal of Radiology ; https://hal.archives-ouvertes.fr/hal-00169574 ; European Journal of Radiology, Elsevier, 2007, 63, pp.274-285 (2007)
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| 14 |
Polysyllabic pseudo-word processing in reading and lexical decision: Converging evidence from behavioral data, connectionist simulations and functional MRI
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In: ISSN: 0006-8993 ; EISSN: 0006-8993 ; Brain Research ; https://hal.archives-ouvertes.fr/hal-00172746 ; Brain Research, Elsevier, 2006, 1085 (1), pp.149-162. ⟨10.1016/j.brainres.2006.02.049⟩ (2006)
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| 15 |
Hemispheric predominance assessment of phonology and semantics: A divided visual field experiment
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In: ISSN: 0278-2626 ; EISSN: 1090-2147 ; Brain and Cognition ; https://hal.archives-ouvertes.fr/hal-00169565 ; Brain and Cognition, Elsevier, 2006, 61, pp.298-304. ⟨10.1016/j.bandc.2006.02.005⟩ (2006)
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