BIO 337 Lecture Notes - Lecture 2: Northern Fur Seal, Slow-Wave Sleep, Golden Hamster
Document Summary
Representation of animals in database are distorted. Comparing carnivores and omnivores are random - no pattern (herbivore specific) 70% insects (don"t have eegs - defined sleep) Sleep studies - 169 species - 60% are mammals (only measured with multiple measures) Food is abundant, lack of predators, ambient temp doesn"t vary much or may not be at thermoneutrality, intensity & quality of light can be artificial. Adaptation of sleep (if at all) to such conditions is species-specific. Ex: golden hamster vs wild rest activity (running wheel) Lab: lots of activity when dark, low activity during light. Wild: lots of activity around dusk and dawn (corpuscular) Behavioral descriptors + characteristic eeg patterns - definition. Can"t measure awake v. s. asleep by behavior (chewing cud) - brain waves don"t match up to activity level (can see slow wave sleep) Two hemispheres alternate times being asleep (slow wave sleep) while the other side is awake.
