Alpha waves pg 153 Waves your brain emits in bursts when you first climb into bed & relax.
Biological rhythm pg 142 A periodic, more or less regular fluctuation in a biological system;
Circadian rhythm pg 142 A biological rhythm with a period (from peak to peak or trough to
Consciousness pg 141 Awareness of ones self & the environement.
Delta waves pg 154 Occurs in stage 3 sleep. In addition to the waves in stage 2, your
desynchronization pg 144 A state in which biological rhythms are not in phase (synchronized)
disorder pg 146 (SAD) A controversial disorder in which a person experiences
Endogenous pg 142 Generated from within rather than by external cues.
Entrainment pg 142 The synchronization of biological rhytms with external cues, such as
Infradian rhythm pg 142 A biological rhythm that occurs less frequently than once a day. Say
Internal
Lucid dreams pg 156 Although most of us are unaware of our bodies or where we are when
Melatonin pg 144 A hormone secreted by the pineal gland; it is involved in the regulation
Narcolepsy pg 152 A sleep disorder involving sudden & unpredictable daytime attacks
Non-REM sleep pg 153 A period of fewer eye movements. Periods divided into shorter
nucleus pg 144 (SCN) Circadian rhythms are controlled by a biological clock or
Premenstrual
Psychoanalytic
Rapid Eye Movement pg 153 (REM) Sleep periods charecterized by eye movement, loss of muscle
Seasonal affective
Sleep apnea pg 152 A disorder in which breathing briefly stops during sleep, causing
Sleep spindles pg 154 Occurs in stage 2 sleep. Your brain emits ocasional short bursts
Suprachiasmatic
Syndrome pg 147 A vague cluster of physical & emotional symptoms in the days
theory of dreams pg 156/178 The psychoanlytic explanations of dreams is that they allow us to
Ultradian rhythm pg 143 Occurs more often than once a day. Frequently or roughly a 90 min.
(a biological clock in our brains governs the waxing & waning of
hormone levels, urine volume, blood pressure & even the
responsiveness of brain cells to stimulation.) may or may not have
psychological implications. But many of these rhythms continue to
occur even in the absence of external time cues. (See endogenous)
fluctuations of daylight, clock time & temperature.
trough) of about 24 hrs. Best known circadian rhythm is the sleep
wake cycle, but there are hundreds of others that affect physiology &
performance such as body temp. Not always perfectly regular & can
be affected by illness, stress, fatigue, etc.)
once a month or once a season. (For example the female menstrual
cycle.)
cycle. The best studied ultradian rhythm occurs during sleep. But
many other physiological responses & behaviors follow an ultradian
pattern when social customs do not intervene. These include
contractions, hormone levels, susceptibility to to visual illusions,
verbal & spatial performance, brain wave responses during cognitive
tasks, alertness & daydreaming.
overall coordinator, located in a tiny tear-drop shaped cluster of cells
in the hypothalamus called the SCN for short. Neural pathways
from special receptors in the back of the eye transmit info. to the
SCN & allow it to respond to changes in light & dark. The SCN then
sends out messages that caus the brain & body to adapt to these