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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]
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.
"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.
First, one can mount a tiny projector on a contact lens. The projector shines an image into the eye. As the eye moves, the contact lens moves with it, so the image is always projected onto the same part of the retina; Second, one can monitor eye movements and move the stimulus to cancel the eye movements;
Superior oblique myokymia is a neurological disorder affecting vision and was named by Hoyt and Keane in 1970. [1]It is a condition that presents as repeated, brief episodes of movement, shimmering or shaking of the vision of one eye, a feeling of the eye trembling, or vertical/tilted vision.
The aura can stay for the duration of the migraine; depending on the type of aura, it can leave the person disoriented and confused. It is common for people with migraines to experience more than one type of aura during the migraine. Some people who have auras have the same type of aura every time.
Negative afterimages are generated in the retina but may be modified like other retinal signals by neural adaptation of the retinal ganglion cells that carry signals from the retina of the eye to the rest of the brain. [3] Normally, any image is moved over the retina by small eye movements known as microsaccades before much adaptation can occur ...
The pair have climbed over 2,000 routes together – and those, Dufton says, are just the ones they have bothered to officially log. “Often people ask us whether or not we argue. No, I think we ...