Early sensory experience influences the development of multisensory thalamocortical and intracortical connections of primary sensory cortices
نویسندگان
چکیده
منابع مشابه
Are the Primary Sensory Cortices Multisensory?
Historically the brain has been viewed as operating in a modular and hierarchical manner. In particular it was previously assumed that each of the primary sensory cortices processed input from a single sensory modality before feeding this information to higher regions of the brain devoted to multisensory integration. This review however outlines a wealth of findings that have emerged in recent ...
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Although each subdivision of primary somatosensory cortex (SI) receives dense input from the thalamus, but the exact location and type of information that the fibers convey have not been identified yet. In the present study, the exact source of thalamocortical fibers to areas 2 and 3b was investigated using tract-tracing techniques. Following injection of tracer into area 3b, labeled neurons ...
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Detection and appropriate reaction to sudden and intense events happening in the sensory environment is crucial for survival. By combining Bayesian model selection with dynamic causal modeling of functional magnetic resonance imaging data, a novel analysis approach that allows inferring the causality between neural activities in different brain areas, we demonstrate that salient sensory informa...
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The multisensory integration capabilities of superior colliculus neurons emerge gradually during early postnatal life as a consequence of experience with cross-modal stimuli. Without such experience neurons become responsive to multiple sensory modalities but are unable to integrate their inputs. The present study demonstrates that neurons retain sensitivity to cross-modal experience well past ...
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Here we report early cross-sensory activations and audiovisual interactions at the visual and auditory cortices using magnetoencephalography (MEG) to obtain accurate timing information. Data from an identical fMRI experiment were employed to support MEG source localization results. Simple auditory and visual stimuli (300-ms noise bursts and checkerboards) were presented to seven healthy humans....
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ژورنال
عنوان ژورنال: Brain Structure and Function
سال: 2017
ISSN: 1863-2653,1863-2661
DOI: 10.1007/s00429-017-1549-1