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  2. Chalkboard scraping - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_scraping

    In contrast, humans are less averse to the white noise than to scraping. [4] A 1986 study used a tape-recording of a three-pronged garden tool similar to a fork being "grided" across a chalkboard, which roughly reproduces the sound of fingernails on chalkboard. The recording was then manipulated, removing pitches at the extremities and the median.

  3. Neurologists reveal 15 subtle migraine symptoms — that aren't ...

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    You might also still have some difficulty concentrating and sensitivity to light and sound, Broner adds. "People just don't feel like themselves," she says. Sometimes, it feels like you never know ...

  4. Callus - Wikipedia

    en.wikipedia.org/wiki/Callus

    Calluses (plantar in right foot and medial in left foot) A callus (pl.: calluses) is an area of thickened and sometimes hardened skin that forms as a response to repeated friction, pressure, or other irritation. Since repeated contact is required, calluses are most often found on the feet and hands, but they may occur anywhere on the skin.

  5. Signs and symptoms of Parkinson's disease - Wikipedia

    en.wikipedia.org/wiki/Signs_and_symptoms_of...

    It is a pronation–supination tremor that is described as "pill-rolling"; that is, the index finger of the hand tends to get into contact with the thumb, and they perform a circular movement together. [1] [2] Such term was given due to the similarity of the movement in PD patients with the former pharmaceutical technique of manually making ...

  6. 'It's life limiting': Living with a diagnosable hatred of ...

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    Her daughter has recently been given permission to use noise cancelling headphones to help her focus during exams. Ms Page also paid for her daughter to get therapy from a leading expert on ...

  7. Optomotor response - Wikipedia

    en.wikipedia.org/wiki/Optomotor_response

    In behavioral biology, the optomotor response is an innate, orienting behavior evoked by whole-field visual motion and is common to fish and insects during locomotion, such as swimming, walking and flying.

  8. Muscle Loss In This Area Could Be a Key Indicator of ... - AOL

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    Dementia is a devastating condition that impacts up to 10 percent of older adults. And while there's no cure, getting diagnosed early can help patients get on a treatment plan and families prepare ...

  9. List of gestures - Wikipedia

    en.wikipedia.org/wiki/List_of_gestures

    Cossogam involves putting the fingers to the right or left of the shinbone for the first or second aicmi, and across it diagonally or straight for the third or fourth aicmi. One finger is used for the first letter, two for the second, and so on. Sronogam involves the same procedure with the ridge of the nose. Placing the finger straight across ...