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Unusual responses to sensory stimuli are more common and prominent in individuals with autism, and sensory abnormalities are commonly recognized as diagnostic criteria in autism spectrum disorder (ASD), as reported in the DSM-5; although there is no good evidence that sensory symptoms differentiate autism from other developmental disorders. [84]
Specifically, proponents of the imprinted brain hypothesis propose that autism spectrum disorders are caused by paternal overimprinting, while schizophrenia spectrum disorders are caused by maternal overimprinting; they point to a number of supposed correlations and anticorrelations seen between the disorders and other traits to support the ...
The amygdala, cerebellum, and many other brain regions have been implicated in autism. [15]Unlike some brain disorders which have clear molecular hallmarks that can be observed in every affected individual, such as Alzheimer's disease or Parkinson's disease, autism does not have a unifying mechanism at the molecular, cellular, or systems level.
Echopraxia is a typical symptom of Tourette syndrome but causes are not well elucidated. [1]Frontal lobe animation. One theoretical cause subject to ongoing debate surrounds the role of the mirror neuron system (MNS), a group of neurons in the inferior frontal gyrus (F5 region) of the brain that may influence imitative behaviors, [1] but no widely accepted neural or computational models have ...
Other disorders associated with echolalia are Pick's disease, frontotemporal dementia, corticobasal degeneration, progressive supranuclear palsy, as well as pervasive developmental disorder. [10] In transcortical sensory aphasia, echolalia is common, with the patient incorporating another person's words or sentences into his or her own response ...
It is not recognized as a mental disorder within the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), as it relates to parts of the brain healing or restructuring. [5] Savant syndrome is estimated to affect around one in a million people. [4] The condition affects more males than females, at a ratio of 6:1. [1]
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11] Sensory abnormalities are also included in the diagnostic manuals ...
Minor cases of DAMP are roughly defined as a combination of developmental coordination disorder (DCD) and a pervading attention deficit. DAMP is similar to minimal brain dysfunction (MBD), a concept that was formulated in the 1960s, [2] and which has since been recognised as attention deficit hyperactivity disorder. Both concepts are related to ...