Invitation to Psychology

ChapTER 5 Body Rhythms and Mental States 183

Key Terms

consciousness 153
biological rhythm 153
endogenous 154
circadian rhythm 154
suprachiasmatic nucleus
(SCN) 155
melatonin 155
internal
desynchronization 155
chronotypes 156
seasonal affective disorder
(SAD) 156

premenstrual syndrome

(PMS) 157

rapid eye movement (REM)

sleep 160

non-REM sleep 160

alpha waves 160

sleep spindles 160

delta waves 160

sleep apnea 163

narcolepsy 163

REM behavior disorder 163

consolidation 163

lucid dream 165

problem-focused approach

to dreaming 166

cognitive approach to

dreaming 167

activation–synthesis theory

of dreams 167

hypnosis 169

dissociation 171

hidden observer 171

sociocognitive explanation

of hypnosis 171

psychoactive

drugs 174

stimulants 174

depressants 174

opiates 174

psychedelic drugs 174

tolerance 177

“think–drink”

effect 179