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Jayster
Incredible Member (2000+ posts)
2021 Posts
Gratitude: 159
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 Posted - 10/15/2015 : 17:19:48
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I went over to the girl friend's apartment. She was lying on the couch with the television on. Then, the phone rang and she yelled into it for several minutes until I just had to get up and go. I just felt awful listening to the TV and her on the phone.
Jayster
The following are excerpts from wikipedia on sensory gating.
P50 (neuroscience)
From Wikipedia, the free encyclopedia
In electroencephalography, the P50 is an event related potential occurring approximately 50 ms after the presentation of a stimulus, usually an auditory click.[1] The P50 response is used to measure sensory gating, or the reduced neurophysiological response to redundant stimuli.
Research has found an abnormal P50 suppression in people with schizophrenia, making it an example of a biological marker for the disorder.[2][3] Besides schizophrenia, abnormal P50 suppression has been found in patients with traumatic brain injury, recreational drug use, and post-traumatic stress disorder.[4]
Sensory gating describes neurological processes of filtering out redundant or unnecessary stimuli in the brain from all possible environmental stimuli.[1][2]Also referred to as gating or filtering, sensory gating prevents an overload of irrelevant information in the higher cortical centers of the brain. The pulvinar nuclei of the thalamus play a major role inattention, and filter out unnecessary information.[3] Although sensory gating is largely automatic, it also occurs within the context of attentional processes. Though the term sensory gating has been used interchangeably with sensorimotor gating, the two are distinct constructs.[4]
Nicotine and sensory gating[edit]
One reason people report they like smoking cigarettes is nicotine's ability to aid their selective attention.[3] In order to alleviate the stress of not being able to gate sensory input, nicotine can correct sensory gating deficits for individuals with schizophrenia, but the effects only last about thirty minutes after nicotine intake.[9] The same self-medication is present among those with attention-deficit/hyperactivity disorder.[7]
Schizophrenia[edit]
A large interest in sensory gating research is directed at improving deficits among people diagnosed with Schizophrenia. People with schizophrenia often have deficits in gating the neuronal response of the P50 wave.[2] Since people with schizophrenia can often have an overload of attended stimuli, the P50 wave may serve a critical role in illuminating sensory gating at a neurological level.
The P50 Auditory Gating deficit is one of the best established biological traits associated with schizophrenia.[1]
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| computer_chip1
Amazing Member (1000+ posts)
1593 Posts
Gratitude: 357
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Posted - 10/17/2015 : 04:28:23
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Jayster, Hi,
I'm sorry you had that negative experience with sensory overload. I looked up that Wikipedia article and the gating finding on EEG seems to be fairly new (6 months ago). I hope the test will be a way of diagnosing and following patients with schizophrenia.
Our brains need to screen out irrelevant background noise or else we can get confused. I hope your girl friend will understand.
Washington, D.C. native. |
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| hercules21
Incredible Member (2000+ posts)
5726 Posts
Gratitude: 435
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Posted - 02/11/2017 : 19:20:06
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Hi Jayster,
As Dr Long announced in the Temporary Closure Of All Our Communities thread this site is in Hiatus until it will be reborn as something else.
We have launched a temporary discussion site so we can stay in touch in the meantime. Check us out maybe:
http://temporarysocialforum.freeforums.net/
"Mrs Morel always said the after-life would hold nothing in store for her husband: he rose from the lower world into purgatory, when he came home from pit, and passed into heaven in the Palmerston Arms.". |
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Sensory Gating
