Molecular cues that guide the development of neural connectivity

1998 ◽  
Vol 33 ◽  
pp. 1-13 ◽  
Author(s):  
Guy Tear
Keyword(s):  
Neural Connectivity

scholarly journals In your phase: neural phase synchronisation underlies visual imagery of faces

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andrés Canales-Johnson ◽  
Renzo C. Lanfranco ◽  
Juan Pablo Morales ◽  
David Martínez-Pernía ◽  
Joaquín Valdés ◽  
...  
Keyword(s):  
Long Range ◽  
Visual Imagery ◽  
Brain Activity ◽  
Neural Connectivity ◽  
Frequency Range ◽  
Subjective Impression ◽  
Gamma Frequency ◽  
Gamma Range ◽  
Theta Frequency ◽  
Socially Relevant

AbstractMental imagery is the process through which we retrieve and recombine information from our memory to elicit the subjective impression of “seeing with the mind’s eye”. In the social domain, we imagine other individuals while recalling our encounters with them or modelling alternative social interactions in future. Many studies using imaging and neurophysiological techniques have shown several similarities in brain activity between visual imagery and visual perception, and have identified frontoparietal, occipital and temporal neural components of visual imagery. However, the neural connectivity between these regions during visual imagery of socially relevant stimuli has not been studied. Here we used electroencephalography to investigate neural connectivity and its dynamics between frontal, parietal, occipital and temporal electrodes during visual imagery of faces. We found that voluntary visual imagery of faces is associated with long-range phase synchronisation in the gamma frequency range between frontoparietal electrode pairs and between occipitoparietal electrode pairs. In contrast, no effect of imagery was observed in the connectivity between occipitotemporal electrode pairs. Gamma range synchronisation between occipitoparietal electrode pairs predicted subjective ratings of the contour definition of imagined faces. Furthermore, we found that visual imagery of faces is associated with an increase of short-range frontal synchronisation in the theta frequency range, which temporally preceded the long-range increase in the gamma synchronisation. We speculate that the local frontal synchrony in the theta frequency range might be associated with an effortful top-down mnemonic reactivation of faces. In contrast, the long-range connectivity in the gamma frequency range along the fronto-parieto-occipital axis might be related to the endogenous binding and subjective clarity of facial visual features.

Diffusion Tensor Imaging Connectomics Reveals Preoperative Neural Connectivity Changes in Children with Postsurgical Posterior Fossa Syndrome

2020 ◽  
Vol 30 (2) ◽  
pp. 192-197 ◽  
Author(s):  
Avner Meoded ◽  
Lisa Jacobson ◽  
Ann Liu ◽  
Colleen Bauza ◽  
Thierry A. G. M. Huisman ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Posterior Fossa ◽  
Diffusion Tensor ◽  
Neural Connectivity ◽  
Posterior Fossa Syndrome

Form ‘defines’ function: Neural connectivity between aesthetic perception and product purchase decisions in an fMRI study

2016 ◽  
Vol 15 (4) ◽  
pp. 335-347 ◽  
Author(s):  
Veena Chattaraman ◽  
Gopikrishna Deshpande ◽  
Hyejeong Kim ◽  
Karthik Ramakrishnan Sreenivasan
Keyword(s):  
Purchase Decisions ◽  
Neural Connectivity ◽  
Aesthetic Perception ◽  
Fmri Study

Modulation of neural connectivity during processing of Chinese characters

2006 ◽  
Author(s):  
Qingbao Yu ◽  
Feng Dong ◽  
Fen Yan ◽  
Bei Li ◽  
Shigang Feng ◽  
...  
Keyword(s):  
Chinese Characters ◽  
Neural Connectivity
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