Webphotic zone, surface layer of the ocean that receives sunlight. The uppermost 80 m (260 feet) or more of the ocean, which is sufficiently illuminated to permit photosynthesis by phytoplankton and plants, is called the euphotic zone. WebSep 29, 2014 · Rationale: Photic driving is a physiologic response (PDR) consisting of rhythmic activity elicited over the parietooccipital regions. It is time locked to the flash frequency during photic stimulation. It can be evoked a few hours after birth. The amplitude of PDR is usually tends to increase in elderly people.
How Does the Suprachiasmatic Nucleus (SCN) Control Circadian …
Webadjective. pho· tic ˈfō-tik. 1. : of, relating to, or involving light especially in relation to organisms. 2. : penetrated by light especially of the sun. the photic zone of the ocean. … WebThe photic zone, also called the euphotic or limnetic zone, is the part of a lake or ocean where the rate of photosynthesis is greater than the rate of respiration by phytoplankton. Phytoplankton are microscopic plants living suspended in the water column that have little or no means of motility. graphics research intern
Word Root: pict (Root) Membean
WebSep 1, 2005 · Photic-induced seizure: A seizure provoked by visual stimulation. The usual stimulus is a flashing light, but it can be patterns of lines, gratings, checkerboards, or other configurations. ... continued to have photic-induced seizures, for a mean of 14 years after the initial diagnosis. In contrast, photosensitivity disappeared over long-term ... WebMar 20, 2024 · photic in American English. (ˈfoutɪk) adjective. 1. of or pertaining to light. 2. pertaining to the generation of light by organisms, or their excitation by means of light. … Webphotic. [ fo´tik] pertaining to light. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, … graphicsresource