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This contradicts information published earlier in a Wired article, which states that the hyperthymesiac Jill Price had been brain scanned and her "hippocampus and prefrontal cortex were reportedly normal", suggesting that these regions of the brain do not need to be different for hyperthymesia to occur.
A hyperfixation can also come be related to executive functioning issues, Adler says, which can make time management and decision-making challenging — especially during times of stress.
Hyperfocus may in some cases also be symptomatic of a psychiatric condition. In some cases, it is referred to as perseveration [2] —an inability or impairment in switching tasks or activities ("set-shifting"), [8] or desisting from mental or physical response repetition (gestures, words, thoughts) despite absence or cessation of a stimulus.
Special interests are sometimes confused with hyperfixations. [11] Hyperfixations are short-lived periods of strong interest in a subject over a few days to months which can occur in anyone (although are especially common in people with ADHD), [12] while special interests are an autistic trait and usually last years. [13]
Parietal lobe also assists with verbal short term memory and damage to the supramarginal gyrus cause short term memory loss. [20] Damage to the parietal lobe results in the syndrome ‘neglect' which is when patients treat part of their body or objects in their visual field as though it never existed.
Research has also indicated that patients with AD and comorbid depression show higher levels of neurofibrillary tangle formation than individuals with AD but no depression. [19] Comorbid depression increased the odds for advanced neuropathologic disease stage even when controlling for age, gender, education and cognitive function.
Terminal lucidity (also known as rallying, terminal rally, the rally, end-of-life-experience, energy surge, the surge, or pre-mortem surge) [1] is an unexpected return of consciousness, mental clarity or memory shortly before death in individuals with severe psychiatric or neurological disorders.
When continuous memory returns, PTA is considered to have resolved. [2] While PTA lasts, new events cannot be stored in the memory. [3] About a third of patients with mild head injury are reported to have "islands of memory", in which the patient can recall only some events. [3] During PTA, the patient's consciousness is "clouded". [4]