In experiments on cats it is established that between the degree of EEG desynchronization in the sensorimotor cortex and expressiveness of the stereotype movements, a dissociation is possible which is most distinctly revealed in comparative studies of haloperidol, clozapine and metoclopramide--neuroleptics with different correlation of antipsychotic and extra-pyramidal properties. Local destruction of the ventral parts of the caudate nucleus head enhances motor disturbances resulting from amphetamine administration, but weakens its effect on the cortex. Elimination of the dorsal parts produces an opposite effect. It is suggested that the cause of the dissociation consists in different sensitivity to amphetamine of the dorsal and ventral parts of the neostriatum which are differently involved in organization of stereotype movements and EEG disturbances in amphetamine stereotypy.
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J Hist Behav Sci
January 2025
Department of Psychology, Oklahoma State University, Stillwater, Oklahoma, USA.
Although naturalists have devoted attention to cetaceans since Antiquity, it was only in the 19th century that cetology underwent a true explosion. Three key cetological works of this period are The Natural History of the Sperm Whale (1839) by Thomas Beale, The Whaleman's Adventures in the Southern Ocean (1850) by Henry Cheever and The Seals and Whales of the British Seas (1881) by Thomas Southwell. Importantly, these three works did not only represent fundamental compendia of scientific knowledge of cetaceans, but also had a crucial role in awakening a cetacean protection consciousness.
View Article and Find Full Text PDFChildren (Basel)
January 2025
Department of Biological and Environmental Science and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy.
Background/objectives: The main objective of this manuscript is to evaluate the effects of training, music, and movement intervention on motor functions, social engagement, and behaviors in autistic children.
Methods: Twenty-one children with a diagnosis of mild autism spectrum disorder (ASD), with an age range of 5-to-13 years, were divided into two groups: the experimental group ( = 10) and the control group ( = 11). All participants were examined before (T0) and after the intervention (T1) to evaluate their motor functions (Bruininks-Oseretsky Motor Performance Test (BOT-2)), maladaptive behavior (RCS (Response to Challenge Scale)), and enjoyment and engagement (PACES (Physical Activity Enjoyment Scale)).
Palliat Support Care
January 2025
Faculdade de Medicina da Universidade de Coimbra, Universidade de Coimbra, Coimbra, Portugal.
One of the most crucial stages of palliative care is the last days and hours of life, which require special attention and knowledgeable identification of clinical signs described as signs of impending death (SID). Our case series of 11 patients receiving home palliative care describes bilateral hypoactive, stereotyped upper arm movements (scratching of the head, forehead, and nose) that were previously unknown or described, often accompanied by SID.
View Article and Find Full Text PDFiScience
January 2025
Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health Houston, Houston, TX 77030, United States of America.
Speech production engages a distributed network of cortical and subcortical brain regions. The supplementary motor area (SMA) has long been thought to be a key hub in coordinating across these regions to initiate voluntary movements, including speech. We analyzed direct intracranial recordings from 115 patients with epilepsy as they articulated a single word in a subset of trials from a picture-naming task.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, USA.
The vestibular system is vital for maintaining stable vision during daily activities. When peripheral vestibular input is lost, patients initially experience impaired gaze stability due to reduced effectiveness of the vestibular-ocular-reflex pathway. To aid rehabilitation, patients are often prescribed gaze-stabilization exercises during which they make self-initiated active head movements.
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