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Luria, Alexander Romanovich

(Encyclopedia)Luria, Alexander Romanovich ŭlˌyĭksänˈdər rōmänˈəvyĭchˌ lo͝orˈēä [key], 1902–77, Soviet psychologist. Luria made advances in many areas, including cognitive psychology, the processes...

paralysis

(Encyclopedia)paralysis or palsy pôlˈzē [key], complete loss or impairment of the ability to use voluntary muscles, usually as the result of a disorder of the nervous system. The nervous tissue that is injured m...

Carlsson, Arvid

(Encyclopedia)Carlsson, Arvid, 1923–2018, Swedish pharmacologist, grad. Univ. of Lund, Sweden, (M.D., Ph.D., 1951). Carlsson was a professor at the Univ. of Lund (1951–59) and at the Univ. of Gothenburg, Sweden...

nicotine

(Encyclopedia)nicotine, C10H14N2, poisonous, pale yellow, oily liquid alkaloid with a pungent odor and an acrid taste. It turns brown on exposure to air. Nicotine, a naturally occurring constituent of tobacco, is t...

lead poisoning

(Encyclopedia)lead poisoning or plumbism plŭmˈbĭzˌəm [key], intoxication of the system by organic compounds containing lead. These enter the body by respiration (of dust, fumes, or sprays) or by ingestion of f...

cryosurgery

(Encyclopedia)cryosurgery krīˈōsrˌjərē [key], bloodless surgical technique using a supercooled probe to destroy diseased or superfluous tissue. Liquid nitrogen circulating through the instrument cools it to t...

Herophilus

(Encyclopedia)Herophilus hĭrŏfˈələs [key], fl. 300 b.c., Greek anatomist, called by some the father of scientific anatomy. A contemporary of Erasistratus at Alexandria, he made public dissections, comparing hu...

Hesse, Eva

(Encyclopedia)Hesse, Eva hĕsˈə [key], 1936–70, American sculptor, b. Hamburg, Germany. Hesse's sculpture displays an antiformalism that developed in the late 1960s in reaction against conventional geometric co...

aphasia

(Encyclopedia)aphasia əfāˈzhə [key], language disturbance caused by a lesion of the brain, making an individual partially or totally impaired in his ability to speak, write, or comprehend the meaning of spoken ...

Wiesel, Torsten Nils

(Encyclopedia)Wiesel, Torsten Nils, 1924–, Swedish neurobiologist, b. Uppsala, Sweden. After earning a degree in medicine from Karolinska Univ., Stockholm (1954), he took a research position at Johns Hopkins, whe...