Results 111 to 120 of about 897,978 (345)
ABSTRACTObjectiveCerebrospinal fluid (CSF) orexin‐A has been suggested to be a biomarker of Alzheimer disease (AD). In both cognitively unimpaired healthy older adults and individuals with symptomatic AD, CSF orexin‐A is positively associated with CSF Aβ42, p‐tau181, and total tau (t‐tau) concentrations.
Ruijin Lu+13 more
wiley +1 more source
Cerebellar anatomy as applied to cerebellar microsurgical resections
OBJECTIVE: To define the anatomy of dentate nucleus and cerebellar peduncles, demonstrating the surgical application of anatomic landmarks in cerebellar resections. METHODS: Twenty cerebellar hemispheres were studied.
Alejandro Ramos+4 more
doaj +1 more source
Large-scale signatures of unconsciousness are consistent with a departure from critical dynamics [PDF]
Loss of cortical integration and changes in the dynamics of electrophysiological brain signals characterize the transition from wakefulness towards unconsciousness. The common mechanism underlying these observations remains unknown. In this study we arrive at a basic model, which explains these empirical observations based on the theory of phase ...
arxiv
New insights into the development of the human cerebral cortex
The cerebral cortex constitutes more than half the volume of the human brain and is presumed to be responsible for the neuronal computations underlying complex phenomena, such as perception, thought, language, attention, episodic memory and voluntary ...
Z. Molnár+13 more
semanticscholar +1 more source
Progressive Myoclonus Epilepsy: Distinctive MRI Changes in Cerebellar and Motor Networks
ABSTRACT Objective Progressive myoclonus epilepsy (PME) is a rare generalized epilepsy syndrome with a well‐characterized genetic basis. The brain networks that are affected to give rise to the distinctive symptoms of PME are less well understood. Methods Eleven individuals with PME with a confirmed genetic diagnosis and 22 controls were studied.
Jillian M. Cameron+3 more
wiley +1 more source
Apathy and the functional anatomy of the prefrontal cortex-basal ganglia circuits.
The clinical signs grouped under the concept of apathy are a common feature of prefrontal and basal ganglia lesions or dysfunctions and can therefore help to improve our understanding of the functional anatomy of the prefrontal-basal ganglia system ...
R. Levy, B. Dubois
semanticscholar +1 more source
ABSTRACT Objective Certain frontotemporal lobar degeneration subtypes, including TDP‐A and B, can either occur sporadically or in association with specific genetic mutations. It is uncertain whether syndromic or imaging features previously associated with these patient groups are subtype or genotype specific.
Sean Coulborn+17 more
wiley +1 more source
The cingulum bundle (CB) is a fasciculus in the white matter surrounded by the cingulate cortex, which is generally subdivided into the anterior, middle, and posterior parts based on their function and cytology.
Sang-Han Choi+4 more
doaj
Claustrum Volume Is Reduced in Multiple Sclerosis and Predicts Disability
ABSTRACT Objective The claustrum is a small, thin structure of predominantly gray matter with broad connectivity and enigmatic function. Little is known regarding the impact of claustrum pathology in multiple sclerosis (MS). Methods This study assessed whether claustrum volume was reduced in MS and whether reductions were associated with specific ...
Nicole Shelley+5 more
wiley +1 more source
Developmental Anatomy of the Root Cortex of the Basal Monocotyledon, Acorus calamus (Acorales, Acoraceae) [PDF]
Aleš Soukup+2 more
openalex +1 more source