Evidence map›Paper›PMID 41902577›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2026

Pulvinar-posterior superior temporal sulcus connectivity contributes to non-conscious emotion processing in affective blindsight.

Appaswamy Thirumal Prabhakar, Kavitha Margabandhu, Christilda John Bosco, Rohan Thomas Jepegnanam, Thanusha Prasad, Sowmiya Sampathkumar, Evelyn Sheena Sunderraj, John Davis Prasad, George Abraham Ninan, Deepti Bal and 6 more

Abstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

16 authors.

Appaswamy Thirumal PrabhakarCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.ORCID 0000-0003-2008-1808
Kavitha MargabandhuCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
Christilda John BoscoCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
Rohan Thomas JepegnanamCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
Thanusha PrasadCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
Sowmiya SampathkumarCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
Evelyn Sheena SunderrajCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
John Davis PrasadCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
George Abraham NinanCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
Deepti BalCognitive Neuroscience and Clinical Phenomenology Laboratory, Department of Neurological Sciences, University of Melbourne and Christian Medical College  Vellore, Kilminnal, 632517, Ranipet District, Tamil nadu, India.
Harshad VanjareDepartment of Radiology, Christian Medical College Vellore, Ida Scudder Road, 632004, Vellore, Tamil Nadu, India.
Anitha JasperDepartment of Radiology, Christian Medical College Vellore, Ida Scudder Road, 632004, Vellore, Tamil Nadu, India.
Pavithra MannamDepartment of Radiology, Christian Medical College Vellore, Ida Scudder Road, 632004, Vellore, Tamil Nadu, India.
Allison M McKendrickDepartment of Optometry and Vision Science, School of Allied Health, University of Western Australia, 2/39 Fairway, Crawley, WA 6009, Perth, Western Australia, Australia.
Olivia CarterMelbourne School of Psychological Sciences, Redmond Barry Building, The University of Melbourne, Spencer Road, Parkville VIC 3010, Melbourne, Victoria, Australia.ORCID 0000-0001-7708-6154
Marta Isabel GarridoMelbourne School of Psychological Sciences, Redmond Barry Building, The University of Melbourne, Spencer Road, Parkville VIC 3010, Melbourne, Victoria, Australia.

Funding

University of Melbourne PhD Scholarship
6 · The paper itself

Abstract

Affective blindsight, the capacity to discriminate emotional stimuli despite bilateral damage to the primary visual cortex (V1) and without conscious awareness, offers a unique model of non-conscious visual processing. Subcortical pathways involving the pulvinar and amygdala have been proposed, but putative cortical contributions remain unclear. We examined 182 patients, including 31 with bilateral V1 lesions. Among these, 15 had cortical visual loss and seven showed affective blindsight. Using behavioral testing, lesion symptom mapping, and tractography, we found that preserved pulvinar connectivity with both the posterior superior temporal sulcus (pSTS) and the amygdala is necessary for affective blindsight. These findings provide causal evidence for a multi-route architecture, identifying the pulvinar-pSTS pathway, alongside the pulvinar-amygdala pathway, as a critical substrate for non-conscious affective processing.

Indexed as

BlindnessEmotionsPulvinarTemporal LobeAdultAgedAmygdalaBrain MappingDiffusion Tensor ImagingFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedNeural PathwaysVisual Pathwaysaffective blindsightamygdalapSTSpulvinarthird visual pathway

Identifiers

PMID41902577
PMCPMC13168818

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.