Monocular eye patching modulates reorienting of covert attention in patients with unilateral middle cerebral artery stroke. 2023

Nadine Schenke, and Elfriede Diestel, and Andreas Kastrup, and Paul Eling, and Helmut Hildebrandt
Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany; Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany. Electronic address: nadine.schenke1@uni-oldenburg.de.

Unilateral brain lesions can lead to impaired contralesional attention and reduced ipsilesional and enhanced contralesional superior colliculus (SC) activity. We aimed to investigate whether modulation of SC activation via monocular eye patching can improve contralesional attention. Twenty left-hemispheric (LH) and 20 right-hemispheric (RH) patients with an acute or subacute middle cerebral artery (MCA) stroke completed an endogenous version of the Posner cueing task twice, while the left or right eye was covered with an eye patch. The LH and RH patients showed significantly slower reactions to contralesional than to ipsilesional stimuli. In addition, the eye patch modulated responses to invalidly but not those to validly cued stimuli. Post hoc analyses could not discriminate whether this effect pertained to a particular target side or eye patch position. However, exploratory analyses indicated that the observed eye patch effect might affect the RH group more than the LH group. As predicted 36 years ago, monocular eye patching modulates visuospatial attention, presumably due to differences in SC activation between the two eye patch conditions. However, this modulation seems too weak and unspecific, and therefore possibly not strong enough to be a treatment option for patients with visuospatial attention impairments.

UI MeSH Term Description Entries
D007839 Functional Laterality Behavioral manifestations of cerebral dominance in which there is preferential use and superior functioning of either the left or the right side, as in the preferred use of the right hand or right foot. Ambidexterity,Behavioral Laterality,Handedness,Laterality of Motor Control,Mirror Writing,Laterality, Behavioral,Laterality, Functional,Mirror Writings,Motor Control Laterality,Writing, Mirror,Writings, Mirror
D010468 Perceptual Disorders Cognitive disorders characterized by an impaired ability to perceive the nature of objects or concepts through use of the sense organs. These include spatial neglect syndromes, where an individual does not attend to visual, auditory, or sensory stimuli presented from one side of the body. Hemispatial Neglect,Hemisensory Neglect,Sensory Neglect,Somatosensory Discrimination Disorder,Discrimination Disorder, Somatosensory,Discrimination Disorders, Somatosensory,Hemisensory Neglects,Hemispatial Neglects,Neglect, Hemisensory,Neglect, Hemispatial,Neglect, Sensory,Neglects, Hemisensory,Perceptual Disorder,Sensory Neglects,Somatosensory Discrimination Disorders
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001288 Attention Focusing on certain aspects of current experience to the exclusion of others. It is the act of heeding or taking notice or concentrating. Focus of Attention,Selective Attention,Social Attention,Attention Focus,Attention, Selective,Attention, Social,Selective Attentions
D020244 Infarction, Middle Cerebral Artery NECROSIS occurring in the MIDDLE CEREBRAL ARTERY distribution system which brings blood to the entire lateral aspects of each CEREBRAL HEMISPHERE. Clinical signs include impaired cognition; APHASIA; AGRAPHIA; weak and numbness in the face and arms, contralaterally or bilaterally depending on the infarction. Cerebral Infarction, Middle Cerebral Artery,Embolic Infarction, Middle Cerebral Artery,MCA Infarct,Middle Cerebral Artery Embolus,Middle Cerebral Artery Infarction,Stroke, Middle Cerebral Artery,Thrombotic Infarction, Middle Cerebral Artery,Embolus, Middle Cerebral Artery,Left Middle Cerebral Artery Infarction,MCA Infarction,Middle Cerebral Artery Circulation Infarction,Middle Cerebral Artery Embolic Infarction,Middle Cerebral Artery Occlusion,Middle Cerebral Artery Stroke,Middle Cerebral Artery Syndrome,Middle Cerebral Artery Thrombosis,Middle Cerebral Artery Thrombotic Infarction,Occlusion, Middle Cerebral Artery,Right Middle Cerebral Artery Infarction,Thrombosis, Middle Cerebral Artery,Infarct, MCA,Infarcts, MCA,MCA Infarcts
D020521 Stroke A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810) Apoplexy,Cerebral Stroke,Cerebrovascular Accident,Cerebrovascular Apoplexy,Vascular Accident, Brain,CVA (Cerebrovascular Accident),Cerebrovascular Accident, Acute,Cerebrovascular Stroke,Stroke, Acute,Acute Cerebrovascular Accident,Acute Cerebrovascular Accidents,Acute Stroke,Acute Strokes,Apoplexy, Cerebrovascular,Brain Vascular Accident,Brain Vascular Accidents,CVAs (Cerebrovascular Accident),Cerebral Strokes,Cerebrovascular Accidents,Cerebrovascular Accidents, Acute,Cerebrovascular Strokes,Stroke, Cerebral,Stroke, Cerebrovascular,Strokes,Strokes, Acute,Strokes, Cerebral,Strokes, Cerebrovascular,Vascular Accidents, Brain

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