Results 11 to 20 of about 3,859 (190)

Neuroplastic changes in functional wiring in sensory cortices of the congenitally deaf: A network analysis. [PDF]

open access: yesHum Brain Mapp, 2023
Bilateral thalamus and pulvinar show higher connectivity pattern to auditory areas in congenitally deaf during visual perception of moving annuli and wedges. Abstract Congenital sensory deprivation induces significant changes in the structural and functional organisation of the brain.
Ruttorf M   +5 more
europepmc   +2 more sources

The Neural Organization of Visual Information in the Auditory Cortex of the Congenitally Deaf. [PDF]

open access: yesHum Brain Mapp
Using fMRI and pRF modeling, we show that visual spatial information is represented in the auditory cortex of congenital deaf individuals through deactivation signals. These negative BOLD responses suggest a novel mechanism of cross‐modal plasticity.
Tal Z   +5 more
europepmc   +2 more sources

Deafness induces complete crossmodal plasticity in a belt region of dorsal auditory cortex

open access: yesEuropean Journal of Neuroscience, Volume 58, Issue 4, Page 3058-3073, August 2023., 2023
Activity of neurons in the higher‐order auditory area DZ of hearing and early‐deaf cats were collected in response to different unisensory and multisensory stimuli. In hearing cats, almost all neurons responded to auditory stimuli and a considerable number of neurons (more than 76%) responded to visual stimuli.
Yaser Merrikhi   +4 more
wiley   +1 more source

Pervasive cortical and white matter anomalies in a mouse model for CHARGE syndrome

open access: yesJournal of Anatomy, Volume 243, Issue 1, Page 51-65, July 2023., 2023
Widespread hypoplasia in the brains of adult Chd7Gt/+ mice. A comparison of mutant and wildtype adult brains by high‐resolution 7 T structural MRI found a reduction in brain volume of mutant mice relative to wildtype littermates (coloured in blue).
Alex P. A. Donovan   +7 more
wiley   +1 more source

Reorganization of thalamocortical connections in congenitally blind humans

open access: yesHuman Brain Mapping, Volume 44, Issue 5, Page 2039-2049, April 1, 2023., 2023
The absence of visual stimuli from birth changes the pattern of thalamocortical connectivity, specifically between visual, auditory and multimodal structures. Our findings bring new evidence for the possible neural underpinnings of cross‐modal plasticity in blind individuals.
Theo F. Marins   +9 more
wiley   +1 more source

Cortical imbalance following delayed restoration of bilateral hearing in deaf adolescents

open access: yesHuman Brain Mapping, Volume 43, Issue 12, Page 3662-3679, August 15, 2022., 2022
Bilateral auditory processing deficits are pervasive and restrictive in deaf cochlear implant patients, but the cortical mechanisms remain poorly understood. This longitudinal electroencephalogram study identified a persistent cortical imbalance towards the long‐deprived ear driven by delayed restoration that disrupts bilateral integration mechanisms ...
Carly A. Anderson   +3 more
wiley   +1 more source

Developmental experiences alter the temporal processing characteristics of the visual cortex: Evidence from deaf and hearing native signers

open access: yesEuropean Journal of Neuroscience, Volume 55, Issue 6, Page 1629-1644, March 2022., 2022
Compared with hearing nonsigners, deaf and hearing signers showed a higher optimal driving frequency in response to fast periodic visual stimulation, which could be explained by the acquisition of a sign language. Cross‐modal activation was not observed in the deaf group, neither for 12 and 21 Hz, nor for 40 Hz (the considered optimal driving frequency
Anna‐Lena Stroh   +6 more
wiley   +1 more source

Altered resting‐state functional network connectivity in profound sensorineural hearing loss infants within an early sensitive period: A group ICA study

open access: yesHuman Brain Mapping, Volume 42, Issue 13, Page 4314-4326, September 2021., 2021
In this study, independent component analysis (ICA) technique was used to detect the characteristics of brain network development in children with bilateral profound sensorineural hearing loss (SNHL) before 3 years old. The results implicate that the loss and the compensatory reorganization of brain network FC coexist in SNHL infants.
Shanshan Wang   +6 more
wiley   +1 more source

Neural correlates of visual stimulus encoding and verbal working memory differ between cochlear implant users and normal‐hearing controls

open access: yesEuropean Journal of Neuroscience, Volume 54, Issue 3, Page 5016-5037, August 2021., 2021
People with hearing loss who have a cochlear implant (CI) have altered neural processing when engaged in a visual working memory task. During the visual stimulus encoding, CI users had greater visual and auditory cortex activation compared with normal‐hearing controls.
Priyanka Prince   +5 more
wiley   +1 more source

Oscillatory and structural signatures of language plasticity in brain tumor patients: A longitudinal study

open access: yesHuman Brain Mapping, Volume 42, Issue 6, Page 1777-1793, April 15, 2021., 2021
In the present study, we combine magnetoencephalography (MEG) and structural MRI to characterize, in a longitudinal manner (post‐ vs. pre‐surgery), language plasticity in brain tumor patients. When comparing patients' responses across time we found beta (13–28 Hz) modulations during picture naming, with ventral and dorsal lesions leading to selective ...
Lucia Amoruso   +8 more
wiley   +1 more source

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