This study investigated two major theories of unilateral neglect utilizing the ipsilaterally innervated olfactory sense. The sensory theory states that unilateral neglect is due to a diminished or attenuated sensory input. The representational theory states that unilateral neglect is due to a disordered internal representation, which is not dependent on sensory input. Results of the study revealed that right hemisphere lesion patients with left unilateral neglect failed to respond to their left contralateral nostril on olfactory double simultaneous stimulation, consistent with the representational theory because the left nostril has no direct sensory input to the right hemisphere.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0028-3932(88)90029-2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The relationship between fractional amplitude of low-frequency fluctuations (fALFF) and the severity of neglect in patients with unilateral spatial neglect (USN) after stroke: A functional near-infrared spectroscopy study.
IBRO Neurosci Rep
June 2025
Rehabilitation Clinic, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China.
Objective: Unilateral spatial neglect (USN) following right hemisphere stroke is more pronounced, severe, and persistent than in the left hemisphere. However, the pathophysiological mechanisms underlying USN remain largely unknown. This study aims to investigate the relationship between the fractional amplitude of low-frequency fluctuations (fALFF) in the right hemisphere of patients with post-stroke USN and the severity of neglect using resting-state functional near-infrared spectroscopy (fNIRS) technology.
View Article and Find Full Text PDFPsychogenic hearing loss in children and adolescents. Diagnosis and psychotherapy.
Ann Med
December 2025
Department of Pediatric Otolaryngology, Centre of Postgraduate Medical Education, Warsaw, Poland.
Introduction: Psychogenic hearing loss is often neglected in the differential diagnosis of hearing disorders. In a difficult diagnostic process and treatment of psychogenic hearing loss disorder, the close cooperation of the audiologist, psychologist, patient, and his family is required. The study aimed to improve the knowledge and understanding of psychogenic hearing loss, establish a differential diagnosis in audiological tests in children, determine diagnostic procedures and finally apply adequate therapeutic procedures.
View Article and Find Full Text PDFLong-term effect of non-invasive brain stimulation on hemispatial neglect, functional outcomes, and mortality after stroke: ELETRON trial extend.
Clin Neurol Neurosurg
January 2025
Department of Neurocience and Mental Health, Botucatu Medical School (UNESP), Botucatu, São Paulo, Brazil.
Introduction: Our primary clinical trial indicated that anodal stimulation of the right posterior parietal region associated with specific and perceptual task training was superior to placebo in reducing stroke-induced hemispatial neglect (HN) immediately after the treatment protocol. However, our primary study did not investigate whether this benefit was maintained in the long term after stroke. Therefore, this study aimed to evaluate the long-term effects of the protocol applied in the ELETRON trial on outcomes associated with HN, functionality, and mortality.
View Article and Find Full Text PDFVirtual reality in clinical evaluation of Unilateral Spatial Neglect, anatomy of current trends: A scoping review.
Appl Neuropsychol Adult
January 2025
COVIRTUA Healthcare, Pépinière TOULOUSE Métropole, Colomiers, France.
Background: Virtual technologies (VR) could respond to several challenges in Unilateral Spatial Neglect (USN) assessment, particularly the lack of sensitivity and ecological validity of traditional paper-and-pencil tests. A scoping review was conducted to explore current trends in this area.
Methods: PubMed, EMBASE, PsycINFO, Web of Science, IEEE, ACM, and the Cochrane Library were systematically searched for VR USN assessment.
The role of the left primary motor cortex in apraxia.
Neurol Res Pract
January 2025
Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
Background: Apraxia is a motor-cognitive disorder that primary sensorimotor deficits cannot solely explain. Previous research in stroke patients has focused on damage to the fronto-parietal praxis networks in the left hemisphere (LH) as the cause of apraxic deficits. In contrast, the potential role of the (left) primary motor cortex (M1) has largely been neglected.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!