Alexia: Loss of the ability to read or understand the written word, due either to brain damage that disconnects these functions or to temporary dysfunction caused by abnormal electrical or chemical activity in the brain.
algia: Word ending indicating pain, as in arthralgia (joint pain), cephalgia (headache), fibromyalgia, mastalgia (breast pain), myalgia (muscle pain), and neuralgia (nerve pain). Derived from the Greek algos meaning pain.
Algophobia: An abnormal and persistent fear of pain. The fear is excessive, beyond that which is expected under the circumstances, producing an anxiety reaction. From the Greek “algos” (pain) and “phobos” (fear). Note that an “algometer” is an instrument for measuring pain (it does so by gauging the smallest pressure that produces pain).
- Alice in Wonderland syndrome
Alice in Wonderland syndrome: A syndrome of distorted space, time and body image. The patient with the Alice in Wonderland syndrome has a feeling that their entire body or parts of it have been altered in shape and size. The syndrome is usually associated with visual hallucinations. The majority of patients with the syndrome have […]
- Alien hand syndrome
Alien hand syndrome: The feeling that one’s hand is possessed by a force outside of ones control. The syndrome typically arises after trauma to the brain, after brain surgery or after a stroke or an infection of the brain. A person with the alien hand syndrome can feel sensation in the affected hand but thinks […]
Alienist: French term for a psychologist, a psychiatrist, or another practitioner who cares for the mentally ill.