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Stress can cause acute and chronic changes in certain brain areas which can cause long-term damage. [4] Over-secretion of stress hormones most frequently impairs long-term delayed recall memory, but can enhance short-term, immediate recall memory. This enhancement is particularly relative in emotional memory.
Further research has revealed that the protein kinase A (PKA) signaling pathway is crucial to long-term memory. If PKA or protein synthesis inhibition occurs at certain moments during sleep, memory consolidation can be disrupted [citation needed]. In addition, mice with genetic inhibition of PKA have been shown to have long-term memory deficits ...
In neurophysiology, long-term depression (LTD) is an activity-dependent reduction in the efficacy of neuronal synapses lasting hours or longer following a long patterned stimulus. LTD occurs in many areas of the CNS with varying mechanisms depending upon brain region and developmental progress.
Causes vary between the different types of disorders but most include damage to the memory portions of the brain. [ 6 ] [ 7 ] [ 8 ] Treatments depend on how the disorder is caused. Medication and therapies are the most common treatments; however, for some types of disorders such as certain types of amnesia , treatments can suppress the symptoms ...
Absent-mindedness seemingly consists of lapses of concentration or "zoning out". This can result in lapses of short or long-term memory, depending on when the person in question was in a state of absent-mindedness. [2] Absent-mindedness also relates directly to lapses in attention. Schachter and Dodsen of the Harvard Psychology department say ...
In addition to its effects during the encoding phase, emotional arousal appears to increase the likelihood of memory consolidation during the retention stage of memory (the process of creating a permanent record of the encoded information). A number of studies show that over time, memories for neutral stimuli decrease but memories for arousing ...
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