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Ghanta, N. A. S. V.

Publications and source records attributed to Ghanta, N. A. S. V..

3 recordsLinked to original sources

Detecting Diffusion Imaging constructive connectivity analysis for What stream Visual Pathways with correlations to Visual Agnosia

Visual perception is the ability to interpret the surrounding environment. A hypothetical \"ventral\" stream visual pathway explains how we perceive objects with respect to spatial orientation. The ventral stream fibers extend between \"Visual cortex to Inferior temporal gyrus. The previous studies have failed to prove any indications on the -structural connectivity of this pathway. This study is designed to trace the existence of neural structural connectivity between \"Visual cortex with Inferior temporal gyrus\" using \"Diffusion Tensor Imaging Tractography\", which aims to correlate its functional importance with visual object perception.\n\nThe observational analysis used thirty-two healthy adults, ultra-high b-value and diffusion MRI datasets from an Open access research platform. The datasets range from both sexes, between 20-49 years, with mean age of 30.4 years. The confirmatory observational analysis process includes; datasets acquisition, pre-processing, processing, reconstruction, fiber tractography and analysis using software tools. All the datasets confirmed the fibre structural extension between, \"Visual cortex to Inferior temporal gyrus in both the sexes may responsible for the visual perception of objects. This new fiber connectivity evidence justifies the structural relevance of visual perception impairments, such as visual object agnosia.

neuroscience

3D Structural Connectivity In Healthy Adults: Detecting Structural Connections And Their Underlying Substrates For Olfactory Saccadic Pathway

This confirmatory study aimed to unravel the neural structural connectivity of Olfactory-Saccadic pathways extending between Piriform and Entorhinal Cortices to Frontal Eye Field (FEF), and to correlate its functional importance with possible clinical implications, using Diffusion Imaging fiber Tractography. The confirmatory observational analysis used thirty-two healthy adults, ultra-high b-value, diffusion imaging datasets from an Open access platform in Human Connectome Project (HCP). In all the datasets from both the sexes, fibers were traced and the neural structural connectivity was confirmed. The hemispheric differences between male and female subjects were anaNumber of tracts refers to a bundle of fibres having lysed using independent sample t-test. Thus, the study confirmed the structural existences of Olfactory-saccadic pathways that may be involved in influencing the movements of the neck and eyeball gaze (saccadic eye movement), towards the spatial orientation of olfactory stimulus.

neuroscience

OLFACTORY SPATIAL ATTENTION: NEURAL STRUCTURAL CONNECTIVITY REVEALED

Different aspects of spatial neglect, the disability to locate the position of the source of an external stimulus, has been studied frequently especially with regards to lack of response to visual stimuli. A modicum of papers fails to elaborate on that of the auditory field and even less conducted on the extraction of spatial information from olfactory stimuli. In this study we attempted to find a structural connection between the Olfactory Cortex (OC) and Temporoparietal Junction (TPJ), in order to suggest that processed olfactory information is carried from OC to TPJ, where the spatial information of the odor maybe acquired. Positive results were attained in all subjects with a lateralization observed in the right hemisphere.\n\nOne Sentence SummaryExistence and hemispherical dominance.

neuroscience