Consciousness Flashcards
Awareness of everything that is going on around an individual at any given time
Consciousness
He compared consciousness to a water moving in a stream.
William James
He described consciousness as not a single stream but multiple channels operating in parallel.
Daniel Dennet
Your awareness of external stimuli and internal events at any given moment, which helps you organize your behavior and construct your reality.
Consciousness
Thoughts, emotions and perceptions are clear and organized.
Waking Consciousness
Shift in mental activity, leading to disorganized thoughts, changes in alertness, or divided awareness
Altered States of Consciousness
Altered state of consciousness ; lower muscle activity, limited sensory activity, and fewer interactions with the environment
Sleep
This is a circadian rhythm, controlled by the brain, specifically by an area within the hypothalamus
SLEEP-WAKE CYCLE
A cycle of bodily rhythm that occurs over a 24-hour period
Circadian Rhythm
This is a tiny section of the brain that influences the glandular system
Hypothalamus
It influences the release of melatonin ; receives direct input from some retinal ganglion cells responding to light ; internal clock
Suprachiasmatic nucleus
Brief sidesteps into sleep lasting only a few seconds
Microsleeps
This theory proposes that sleep is a product evolution.
Adaptive theory
This theory proposes that sleep is necessary to the physical health of the body. Also for memory retention.
Restorative Theory
Loss of sleep ; a serious problem without many people realizing
Sleep Deprivation
Two Kinds of Sleep
Rapid Eye Movement (REM) and Non-Rapid Eye Movement (NREM)
High active sleep stage ; dreaming occurs here and voluntary muscles are inhibited ; associated with memory processing and emotional regulation
REM Sleep
Lighter to deeper sleep stages ; More restorative than REM sleep, focusing on physical recovery
NRem Sleep
Patterns of electrical activity occurring in the brain ; can be seen using EEG
Brain Waves
Small, fast waves associated with mental activity
Beta Waves
Indicate relaxation or light sleep
Alpha Waves
Occur in early sleep stages
Theta Waves
Large, slow, waves found in deep sleep
Delta Waves
Transition from wakefulness to sleep
N1: Light Sleep