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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 ]
"We need to see when these hyperfixations have started to affect their daily functioning," he says, like if you're waking up in the middle of the night to eat your hyperfixation meal.
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.
This means that the small, involuntary eye movements made when fixating on something fail to move the stimulus onto a new cell's receptive field, in effect giving unvarying stimulation. [2] Further experimentation this century by Hsieh and Tse showed that at least some portion of the perceptual fading occurred in the brain, not in the eyes. [3]
Prosopometamorphopsia (PMO [1]), also known as demon face syndrome, [2] is a visual disorder characterized by altered perceptions of faces. In the perception of a person with the disorder, facial features are distorted in a variety of ways including drooping, swelling, discoloration, and shifts of position.
Some people who have auras have the same type of aura every time. Auras can also be confused with sudden onset of panic, panic attacks or anxiety attacks, which creates difficulties in diagnosis. The differential diagnosis of patients who experience symptoms of paresthesias , derealization , dizziness, chest pain, tremors, and palpitations can ...
Aphakic patients do not have a crystalline lens. The crystalline lens is often removed because of opacities called cataracts. The absence of this lens left the patient highly hyperopic (farsighted) in that eye. For some patients the removal was only performed on one eye, resulting in the anisometropia / aniseikonia.
Americans eat black-eyed peas for New Year's to bring about good fortune in the coming year. But that's the short answer. The long one involves a shared family tradition that celebrates the legume ...