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In more modern times, research surrounding attention disorders has traditionally focused on hyperactive symptoms, but began to newly address inattentive symptoms in the 1970s. Influenced by this research, the DSM-III (1980) allowed for the first time a diagnosis of an ADD subtype that presented without hyperactivity.
[15] [16] Similarly, increasing the duration of a stimulus available in a reaction time task was found to produce slightly faster reaction times to visual [15] and auditory stimuli, [17] though these effects tend to be small and are largely consequent of the sensitivity to sensory receptors. [8]
Differences in auditory latency (the time between the input is received and when reaction is observed in the brain), hypersensitivity to vibration in the Pacinian corpuscles receptor pathways, and other alterations in unimodal and multisensory processing have been detected in autism populations. [26]
Temporal lobe signs usually involve auditory sensation and memory, and may include: [citation needed] deafness without damage to the structures of the ear, described as cortical deafness; tinnitus, auditory hallucinations; loss of ability to comprehend music or language, described as a sensory aphasia (Wernicke's aphasia)
Visual apperceptive agnosia is a visual impairment that results in a patient's inability to name objects. [9] While agnosics suffer from severe deficits, patients' visual acuity and other visual abilities such as perceiving parts and colours remain intact. [6] Deficits seem to occur because of damage to early-level perceptual processing. [9]
As seen in the examples above, although memory does degenerate with age, it is not always classified as a memory disorder. The difference in memory between normal aging and a memory disorder is the amount of beta-amyloid deposits, hippocampal neurofibrillary tangles, or amyloid plaques in the cortex. If there is an increased amount, memory ...
Visual hyposensitivity symptoms include: "Seeing double." Fatigues easily while reading, writing, drawing, playing video games; Vestibular hyposensitivity symptoms include: Hyperactivity. Rocking back and forth or walking in circles while body rocking. Can spin or swing for a long time without feeling dizzy or nauseated. Trouble with balance.
In short, "Echoic memory is a fast-decaying store of auditory information." [17] In the case of damage to or lesions developing on the frontal lobe, parietal lobe, or hippocampus, echoic memory will likely be shortened and/or have a slower reaction time. [18]