Results 71 to 80 of about 912,040 (357)

The auditory representation of speech sounds in human motor cortex

open access: yeseLife, 2016
In humans, listening to speech evokes neural responses in the motor cortex. This has been controversially interpreted as evidence that speech sounds are processed as articulatory gestures.
Connie Cheung   +3 more
semanticscholar   +1 more source

Aging and the Spectral Properties of Brain Hemodynamics

open access: yesAdvanced Science, EarlyView.
As the brain ages, its metabolic demands decline—but not uniformly. Here, spectral slope flattening of resting‐state fMRI signals is proposed as a potential biomarker of pathologic brain aging. A subset of older adults diverges from youthful spectral and metabolic patterns, with changes linked to frontal white matter pathology and regional loss of ...
Ki Yun Park   +9 more
wiley   +1 more source

Explicit and Implicit Processes in Human Aversive Conditioning [PDF]

open access: yes, 2006
The ability to adapt to a changing environment is central to an organism’s success. The process of associating two stimuli (as in associative conditioning) requires very little in the way of neural machinery.
Carter, Ronald McKell
core   +1 more source

Long Term High‐Salt Diet Induces Cognitive Impairments via Down‐Regulating SHANK1

open access: yesAdvanced Science, EarlyView.
The study identifies a novel mechanistic link between long‐term HS diet and cognitive impairment, wherein PKA/CREB axis inactivation leads to SHANK1 reduction, synaptic damage, and cognitive deficits. Abstract High‐salt (HS) diet is an established risk factor for cognitive impairment, but the underlying mechanisms remain unclear.
Cuiping Guo   +10 more
wiley   +1 more source

Functional near infrared spectroscopy (fNIRS) to assess cognitive function in infants in rural Africa [PDF]

open access: yes, 2011
Cortical mapping of cognitive function during infancy is poorly understood in low-income countries due to the lack of transportable neuroimaging methods. We have successfully piloted functional near infrared spectroscopy (fNIRS) as a neuroimaging tool in
A Blasi   +54 more
core   +1 more source

Contrast Tuning in Auditory Cortex [PDF]

open access: yesScience, 2003
The acoustic features useful for converting auditory information into perceived objects are poorly understood. Although auditory cortex neurons have been described as being narrowly tuned and preferentially responsive to narrowband signals, naturally occurring sounds are generally wideband with unique spectral energy profiles.
Xiaoqin Wang, Dennis L. Barbour
openaire   +3 more sources

Enhanced Brain‐Heart Connectivity as a Precursor of Reduced State Anxiety after Therapeutic Virtual Reality Immersion

open access: yesAdvanced Science, EarlyView.
This study shows that enhanced brain‐to‐heart coupling is a precursor of anxiety reduction following a virtual reality‐based non‐pharmacological intervention. Driven by midline beta rhythms, this effect suggests the involvement of central‐autonomic interactions.
Idil Sezer   +6 more
wiley   +1 more source

Change detection in children with autism: an auditory event-related fMRI study [PDF]

open access: yes, 2006
Autism involves impairments in communication and social interaction, as well as high levels of repetitive, stereotypic and ritualistic behaviours, and extreme resistance to change. This latter dimension, whilst required for a diagnosis, has received less
Ashwin, C   +6 more
core   +1 more source

Prestimulus Network Integration of Auditory Cortex Predisposes Near-Threshold Perception Independently of Local Excitability

open access: yesCerebral Cortex, 2015
An ever-increasing number of studies are pointing to the importance of network properties of the brain for understanding behavior such as conscious perception. However, with regards to the influence of prestimulus brain states on perception, this network
Sabine L. Leske   +6 more
semanticscholar   +1 more source

A Novel Transfer Learning‐Based Hybrid EEG‐fNIRS Brain‐Computer Interface for Intracerebral Hemorrhage Rehabilitation

open access: yesAdvanced Science, EarlyView.
The study has developed the first clinically validated hybrid EEG‐fNIRS brain‐computer interface fusion framework that systematically overcomes cross‐subject generalization barriers through a novel Wasserstein metric‐driven neural template selection mechanism.
Danyang Chen   +18 more
wiley   +1 more source

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