ArticlePloS one2013
The second face of blindness: processing speed deficits in the intact visual field after pre- and post-chiasmatic lesions.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 29 citations in OpenAlex.
- Abnormal contrast responses in the extrastriate cortex of blindsight patients.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015Trial
- Transhemispheric optic pathway degeneration following unilateral post-geniculate lesions.Brain communications · 2026Article
- A Simulated Visual Field Defect Impairs Temporal Processing: An Effect Not Modulated by Emotional Faces.Vision (Basel, Switzerland) · 2025Article
- Slowed Saccadic Reaction Times in Seemingly Normal Parts of Glaucomatous Visual Fields.Frontiers in medicine · 2021Article
- Useful Field of View Performance in the Intact Visual Field of Hemianopia Patients.Investigative ophthalmology & visual science · 2020Article
- Early Functional Connectivity Predicts Recovery from Visual Field Defects after Stroke.Journal of stroke · 2019Article
- Blindsight relies on a functional connection between hMT+ and the lateral geniculate nucleus, not the pulvinar.PLoS biology · 2018Article
- Article
- Blindsight and Unconscious Vision: What They Teach Us about the Human Visual System.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2016Review
- Behavioral Consequences and Cortical Reorganization in Homonymous Hemianopia.Frontiers in systems neuroscience · 2016Review
- A matter of time: improvement of visual temporal processing during training-induced restoration of light detection performance.Frontiers in psychology · 2015Article
- Time-interval for integration of stabilizing haptic and visual information in subjects balancing under static and dynamic conditions.Frontiers in systems neuroscience · 2014Review
- "Sightblind": perceptual deficits in the "intact" visual field.Frontiers in neurology · 2013Article
- Remaining visual field and preserved subjective visual functioning prevent mental distress in patients with visual field defects.Frontiers in human neuroscience · 2013Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeDamage along the visual pathway results in a visual field defect (scotoma), which retinotopically corresponds to the damaged neural tissue. Other parts of the visual field, processed by the uninjured tissue, are considered to be intact. However, perceptual deficits have been observed in the "intact" visual field, but these functional impairments are poorly understood. We now studied temporal processing deficits in the intact visual field of patients with either pre- or post-chiasmatic lesions to better understand the functional consequences of partial blindness.
methodsPatients with pre- (n = 53) or post-chiasmatic lesions (n = 98) were tested with high resolution perimetry--a method used to map visual fields with supra-threshold light stimuli. Reaction time of detections in the intact visual field was then analyzed as an indicator of processing speed and correlated with features of the visual field defect.
resultsPatients from both groups exhibited processing speed deficits in their presumably "intact" field as indicated by comparison to a normative sample. Further, in both groups processing speed was found to be a function of two factors. Firstly, a spatially restricted (retinotopic) influence of the scotoma was seen in longer reaction times when stimuli were presented in intact field sectors close to the defect. Secondly, patients with larger scotomata had on average longer reaction times in their intact field indicating a more general (non-retinotopic) influence of the scotoma.
conclusionsProcessing speed deficits in the "intact" visual field of patients with visual system damage demonstrate that visual system lesions have more widespread consequences on perception than previously thought. Because dysfunctions of the seeing field are expected to contribute to subjective vision, including visual tests of the presumed "intact" field may help to better understand vision loss and to improve methods of vision restoration and rehabilitation.
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