EXAM 2 Chapter 3 Part 1: Levels of Awareness and Circadian Rhythms Flashcards
Circadian Rhythm
clock at zero when waking up, goes back to this the next you wake up; behavior that synchronize with the 24 hour cycle of the day
Examples:
Sleep/wake cycle
Body temperature
Blood pressure
Blood sugar level
Periods of time of eating
Sometimes seasonal depression
Consciousness
Awareness of external events and internal sensations while under a condition of arousal(level of awakeness); Not only responding, but aware of things within you grasp/vision
Awareness
the subjective state of reflecting about yourself, your thoughts, and your experiences; a form of metacognition
Metacognition
thinking about thinking; Thinking about your own thoughts; Concentrating on what is going on inside your head; Introspection very similar, just used by other branch of psychology
Arousal
physiological state of being engaged with the environment(Awareness of the body); Different levels(Coma, Anxious state,Chill)
Levels of Awareness
higher level consciousness, lower level consciousness, altered states of consciousness, subconscious awareness, and no awareness
Higher Level consciousness
controlled processing, in which individuals are actively thinking and alert; focused on their tasks and goals; have to try, put effort into focusing; not happening automatically, using brain effort to put attention on one thing
example: studying for a test, remembering, and examining material; learning a new skill, like playing an instrument
Lower level consciousness
automatic processing and daydreaming, which requires little attention and focus; Well-practiced skill that you do not really need conscious effort to do it
Example: driving, typing; letting your mind wander
Altered States of Consciousness
produced by drugs, trauma and fatigue
Example: alcohol is popular drug to shift consciousness experience; drug taken to hallucinate
Subconscious awareness
usually occurs when people are asleep and dreaming, but also occurs when we are awake; Not really aware of environment; Body not processing them, or at such minimal levels that you do not know they are happening
Examples: sleep and dreaming; blindsight
Blindsight Study
o Light information goes in and processed to a certain extent; can only recognize motion, not what the object is around them; Only can see out of left eye, right eye is blind
Split-brain patient example: Man living with splut brain, could only read certain words, can only write/draw certain things example
No Awareness
usually occurs when we are knocked out or anesthetized; Sometimes alcohol can do this, or sudden drop of blood pressure
Biological Clock
brain system that detects the passage of time, using internal and external cues, and regulates body system accordingly; * Can be difficult with opposite rhythms changing a bunch(Country going from a lot of darkness during the year vs a lot of natural light during the year); Held inside the Hypothalamus(since it regulates things in the brain!)
Suprachiasmatic Nucleus
group of cells in charge of detecting how much time has passed; part of the hypothalamus that uses input from the eyes to synchronize its rhythm with the daily cycle of light and dark
What would happen if you removed suprachiasmatic nucleus?
be awake and asleep at shorter periods of time instead of long extended time-slots