Results 131 to 140 of about 4,517,874 (378)
ABSTRACT Objective Sleep spindles are an electrophysiological fingerprint of the sleeping human brain. They can be described in terms of duration, frequency, amplitude, and density, and vary widely according to age and sex. Spindles play a role in sleep and wake functions and are altered in several neurological and psychiatric disorders.
Julien Coelho+8 more
wiley +1 more source
Harnessing Integrated CPU-GPU System Memory for HPC: a first look into Grace Hopper [PDF]
Memory management across discrete CPU and GPU physical memory is traditionally achieved through explicit GPU allocations and data copy or unified virtual memory. The Grace Hopper Superchip, for the first time, supports an integrated CPU-GPU system page table, hardware-level addressing of system allocated memory, and cache-coherent NVLink-C2C ...
arxiv
NMDA antagonist MK-801 impairs acquisition but not performance of spatial working and reference memory [PDF]
Matthew L. Shapiro, Zografos Caramanos
openalex +1 more source
Histone Deacetylase 6 Brain PET in Amyotrophic Lateral Sclerosis‐Frontotemporal Spectrum Disorder
ABSTRACT Objective [18F]EKZ‐001 is a positron emission tomography (PET) tracer targeting histone deacetylase 6 (HDAC6), an enzyme responsible for intracellular transport and clearance of misfolded proteins. HDAC6 modulation is a promising treatment strategy in neurodegenerative disorders, including amyotrophic lateral sclerosis (ALS).
Greet Vanderlinden+15 more
wiley +1 more source
Dissociation of mnemonic and perceptual processes during spatial and nonspatial working memory using fMRI [PDF]
Ayşenil Belger+5 more
openalex +3 more sources
Working memory filtering continues to develop into late adolescence
While most measures of working memory (WM) performance have been shown to plateau by mid-adolescence and developmental changes in fronto-parietal regions supporting WM encoding and maintenance have been well characterized, little is known about ...
Matthew Peverill+3 more
doaj
Nonrecurring-items delayed nonmatching-to-sample in rats: A new paradigm for testing nonspatial working memory [PDF]
Dave G. Mumby+2 more
openalex +1 more source
ABSTRACT Objective Amygdala enlargement has been the subject of controversial studies regarding its significance in terms of pathogenicity both in epilepsy and in psychiatric comorbidities such as anxiety, depression, and post‐traumatic stress disorder.
Hélène Mourre+15 more
wiley +1 more source
ABSTRACT Objective People with HIV (PWH) on antiretroviral therapy (ART) still experience neurocognitive dysfunction and accelerated brain volume loss. To assess whether the serotonergic and dopaminergic systems are affected, we used [11C]DASB positron emission tomography (PET) to assess presynaptic serotonergic function and [18F]FDOPA PET to measure ...
Chuen‐Yen Lau+12 more
wiley +1 more source
Cognitive Architecture for Direction of Attention Founded on Subliminal Memory Searches, Pseudorandom and Nonstop [PDF]
By way of explaining how a brain works logically, human associative memory is modeled with logical and memory neurons, corresponding to standard digital circuits. The resulting cognitive architecture incorporates basic psychological elements such as short term and long term memory.
arxiv