Specialized sensory perception was examined in 20 women with polycystic ovary syndrome and in 20 healthy women with normal ovulatory genital cycle. None of the healthy women disclosed any anomaly in sensory perception while with no exception all patients with polycystic ovary syndrome disclosed anomalies in sensory perception of one or other sensory analyzer. Defects in smell (hypoosmis) were more common (19 cases) than those of taste (hypogeusia) (II cases), of vestibular (14 cases) or auditory (3 cases) function, although defects in two or more analyzers occurred together in most of the cases. The association of the syndrome with anomalies in the sensory perception suggested that various central nervous structures beside these controlling the releasing factors are involved in the pathomechanism of the disease and that specialized sensory perception in man has much more to do with the neuroendocrine system than previously believed.
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PLoS Biol
January 2025
Department of Neurology, School of Medicine and Health, Technical University of Munich (TUM), Munich, Germany.
Pain is closely linked to alpha oscillations (8 < 13 Hz) which are thought to represent a supra-modal, top-down mediated gating mechanism that shapes sensory processing. Consequently, alpha oscillations might also shape the cerebral processing of nociceptive input and eventually the perception of pain. To test this mechanistic hypothesis, we designed a sham-controlled and double-blind electroencephalography (EEG)-based neurofeedback study.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
Background: Visual dysfunction, including abnormal stereopsis, is a significant non-motor symptom in Parkinson's disease (PD) that can reduce quality of life and appears early in the disease. Abnormal stereopsis is associated with worsening of bradykinesia and freezing of gait, though the exact pathways linking stereopsis to motor symptoms remain unclear. Furthermore, in PD patients, the pedunculopontine nucleus and laterodorsal tegmental complex play an active role in sensorimotor control, and these areas provide cholinergic projections.
View Article and Find Full Text PDFAfr J Prim Health Care Fam Med
December 2024
Department of Neurology, Faculty of Neurology, Neurology and Neurophysiology Center, Vienna.
N/A.
View Article and Find Full Text PDFJ Surg Case Rep
January 2025
Department of Colorectal Surgery, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, 14080 Mexico City, Mexico.
Anal melanoma is a rare malignancy, accounting for 0.4% to 1.6% of all melanomas.
View Article and Find Full Text PDFFront Aging Neurosci
January 2025
Department of Rehabilitation Medicine Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Background: The perception of Subjective Visual Vertical (SVV) is crucial for postural orientation and significantly reflects an individual's postural control ability, relying on vestibular, visual, and somatic sensory inputs to assess the Earth's gravity line. The neural mechanisms and aging effects on SVV perception, however, remain unclear.
Objective: This study seeks to examine aging-related changes in SVV perception and uncover its neurological underpinnings through functional near-infrared spectroscopy (fNIRS).
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