( l proposes that individuals with autism...)iSTART Brain Model Reveals the possible Cause of Autism,Health

l proposes that individuals with autism experience under-aroused emotional depression which helps explain symptoms like reduced emotional expression as well as emotional outbursts.’ The third model, called the Spectral Timing model, clarifies how the brain adaptively times responses in order to acquire rewards and other goals. iSTART shows how individuals with autism experience failures of adaptive timing that lead to the premature release of behaviors which are then unrewarded.

‘iSTART depicts how autistic symptoms may arise from breakdowns in normal brain processes, notably a combination of under-stimulated emotional depression in the amygdala and related brain regions, learning of hyperspecific recognition categories in the temporal and prefrontal cortices, and breakdowns of adaptively timed attention and motor circuits in the hippocampal system and cerebellum,’ said Grossberg. ‘The model clarifies how malfunctions in these mechanisms can, though a system-wide vicious circle, cause and maintain problems with them all.’ According to the researchers, iSTART is a breakthrough in the understanding of the many factors that contribute to autism and provides a unifying perspective that connects autistic symptoms to brain mechanisms that have no obvious connection to the condition. ‘This approach should make it easier for scientists studying normal behavior to connect their work to autism research,’ said Grossberg. ‘iSTART opens up a wide range of possible new experiments to evaluate autistic behaviors and further test and develop the model.’

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