Visual short term memory loss? - visual serving sizes
Sometimes when I play tennis on my computer and thinking of nothing but completely forgotten that it is fulfilled. Is this a sign of loss of short-term memory?
Saturday, January 16, 2010
Visual Serving Sizes Visual Short Term Memory Loss?
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I'm pretty sure that there is a loss of short-term memory.
Anterograde amnesia is memory loss, what happens after the event led to the amnesia of retrograde amnesia, where memories are forgotten before the event differently. To a large extent anterograde amnesia remains a mysterious disease, since the exact mechanism of storing memories is not well understood, although scientists know that brain regions are involved.
CAUSES:
The disease is normally acquired in one of two ways: either it is through drugs (benzodiazepines such as midazolam, flunitrazepam, temazepam, triazolam induced nimetazepam and is known for strong effects) have amnesia, or after a traumatic brain injury the bark is usually damage to the hippocampus or in the vicinity.
Amnesia was observed in patients who are removed for the prevention of another serious disease, with the parts of his brain that are known to be involved in memory circuits and in particular the so-called system through the temporal lobes (MTL) memory, descrIBED below. Often, patients with seizures associated with the MTL structures from either side or both (there is no structure in the hemisphere). Moreover, as patients with tumors that often operates damage to these structures, described in one case. Damage to any part of this system, including the hippocampus and the cortex to the findings in amnesic syndromes.
Symptoms:
Patients with anterograde amnesia syndrome may be with different degrees of neglect. In some patients with severe cases are a combination of anterograde and retrograde amnesia, sometimes called global amnesia.
Where the amnesia induced by drugs that can short-term and patients can recover. In any case, widely studied since the early 1970s, patients often damage is in the final, although some recovery is possible, depending on the type of pathophysiology. In general, there is still some capacity for learning, but very simple. In the pure forwardrograde amnesia, patients have memories of the events before the injury, but can not remember details of daily or new facts that were presented after the injury.
In most cases, anterograde amnesia, patients lose the declarative memory or the memory of facts but do not keep-declarative memory, often called procedural memory. For example, in a position to remember and learn, in some cases, doing things like talking on the phone or on a bicycle, but can not remember what he had eaten that day for lunch. In addition, the patients have a decreased ability to time-frame, remember where objects presented. Some authors argue that the deficit is more important in the memory of temporal context as the deficit in learning semantics (see below).
Pathophysiology:
The pathophysiology of syndromes anterograde amnesia varies with the extent of the damage and brain regions that were damaged. Described the regions most appropriate in this disorder are the medial temporal lobe (MTL), Basal forebrain and fornix. About the details described below, is the exact process of how you remember - on a micro level - a mystery. Neuropsychologists and scientists do not yet fully understood approve if the forgetfulness is due to incorrect coding, the acceleration of forgetting, or the recovery, even though a large amount of data seems to point to the hypothesis of encoding.
It is a sign of desperation.
It is a sign of desperation.
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