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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.
Intense psychological stress caused by unwanted, troublesome memories can cause brain structures such as the amygdala, hippocampus and frontal cortex to become activated, as they process the memory. Related to this, there is some neuroimaging ( fMRI ) evidence that those who are susceptible to PTSD have a hippocampus with a reduced size. [ 4 ]
Memory and trauma is the deleterious effects that physical or psychological trauma has on memory. Memory is defined by psychology as the ability of an organism to store, retain, and subsequently retrieve information. When an individual experiences a traumatic event, whether physical or psychological trauma, their memory can be affected in many ...
To sum up anxiety and memory and aging, it is useful to recognize a correlation between what anxiety can cause the body to do and how memories are then formed or not formed, and how the aging brain has enough difficulty on its own trying to perform recall tasks.
Having a long-lasting extremely vivid and detailed memory for negative events can cause a great deal of anxiety, as seen in post traumatic stress disorders. Individuals with PTSD endure flashbacks to traumatic events, with much clarity. [55]
Scientists have discovered that inhibiting a protein could stop dyskinesia symptoms and erase the brain's "bad memory" response to long-term Parkinson's therapies.
Theories of a proposed stress–illness link suggest that both acute and chronic stress can cause illness, and studies have found such a link. [58] According to these theories, both kinds of stress can lead to changes in behavior and in physiology. Behavioral changes can involve smoking and eating habits and physical activity.
Evidence shows that stress enhances memory for aspects and details directly related to the stressful event. [77] Furthermore, behavioural and cognitive memory-enhancing responses, such as rehearsing or revisiting a memory in one's mind are also more likely when memories are highly emotional. [78]