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The human brain is the central organ of the nervous system, and with the spinal cord, comprises the central nervous system. It consists of the cerebrum, the brainstem and the cerebellum. The brain controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sensory nervous system ...
This development section covers changes in brain structure over time. It includes both the normal development of the human brain from infant to adult and genetic and evolutionary changes over many generations. Neural development in humans; Neuroplasticity – changes in a brain due to behavior, environment, aging, injury etc.
The differentiation of speech production into only two large sections of the brain (i.e. Broca's and Wernicke's areas), which was accepted long before medical imaging techniques, is now considered outdated. Broca's area was first suggested to play a role in speech function by the French neurologist and anthropologist Paul Broca in 1861.
These findings imply that while speech processing is a very complex process, the brain may be using fairly basic, preexisting computational methods. [ 15 ] Recent neuroimaging studies suggest that Wernicke's area plays a pivotal role in the nuanced aspects of language processing, including the interpretation of ambiguous words and the ...
In the last two decades, significant advances occurred in our understanding of the neural processing of sounds in primates. Initially by recording of neural activity in the auditory cortices of monkeys [18] [19] and later elaborated via histological staining [20] [21] [22] and fMRI scanning studies, [23] 3 auditory fields were identified in the primary auditory cortex, and 9 associative ...
Patients otherwise exhibit a relatively normal control of language. The symptoms of conduction aphasia suggest that the connection between the posterior temporal cortex and frontal cortex plays a vital role in short-term memory of words and speech sounds that are new or have just been heard. The arcuate fasciculus is the main connection between ...
Pierre-Yves Oudeyer developed models which showed that basic neural equipment for adaptive holistic vocal imitation, coupling directly motor and perceptual representations in the brain, can generate spontaneously shared combinatorial systems of vocalisations, including phonotactic patterns, in a society of babbling individuals.
The cohort model is based on the concept that auditory or visual input to the brain stimulates neurons as it enters the brain, rather than at the end of a word. [5] This fact was demonstrated in the 1980s through experiments with speech shadowing, in which subjects listened to recordings and were instructed to repeat aloud exactly what they heard, as quickly as possible; Marslen-Wilson found ...