ArticleNeuropsychologia2019
Reliability in reporting perceptual experience: Behaviour and electrophysiology in hemianopic patients.
Article in Neuropsychologia, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Bypassing input to V1 in visual awareness: A TMS-EROS investigation.Neuropsychologia · 2024Article
- A Scientific Approach to Conscious Experience, Introspection, and Unconscious Processing: Vision and Blindsight.Brain sciences · 2022Review
- Late Positivity Does Not Meet the Criteria to be Considered a Proper Neural Correlate of Perceptual Awareness.Frontiers in systems neuroscience · 2020Article
- Visually evoked responses from the blind field of hemianopic patients.Neuropsychologia · 2019Article
- The Glamor of Old-Style Single-Case Studies in the Neuroimaging Era: Insights From a Patient With Hemianopia.Frontiers in psychology · 2019Article
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Authors and funding
4 authors.
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Abstract
Patients with hemianopia can present with the so called blindsight phenomenon: the ability to perform above chance in the absence of acknowledged awareness. Proper awareness reports are, thus, crucial to distinguish pure forms of blindsight from forms of conscious, yet degraded, vision. It has, in fact, been recently shown that 1) dichotomous and graded measures to assess awareness can lead to different behavioural results in patients with hemianopia and that 2) different grades of perceptual clarity show different electrophysiological correlates in healthy participants. Here, in hemianopic patients, we assessed awareness by means of the four-point Perceptual Awareness Scale (PAS) and investigated its neural correlates with Event Related Potentials (ERPs). Results showed that patients, in most of the cases, can rate the clarity of their perceptual experience in a graded manner. Moreover, graded perceptual experiences correlated with the amplitude of deflections in ERPs. These results call for the need to assess perceptual awareness with graded measures and for the importance to use electrophysiological data to correlate behaviour with neural processing.
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