How Do Sensations Become Perceptions: “Trigger” sensation goes to CNS fires to signal the Brain.
Sensory Threshold: the intensity for something needed to be detected by us.
signal-detection: threshold combined with one’s state of mind.
sublime perception: something too weak to signal in our conscious mind, though it signals in our unconcious mind.
Difference threshhold: how intense a stimulus needs to be.
Cocktail party Affect: someone says your name and you hear it during a party.
PARTS of the EYE
Scelara: White membrane
Cornea:focuses light
Iris: muscle/ determines eye color
Pupil: opening at the center of the iris
Lens: focuses light
Retina: receives info, and gets it into your brain.
Vision and the Brain: connected.
Dark Adaptation: what changes? our eyes switch from cone to rod dominance.
Trichromatic theory: colors are seen as red, green blue, which happens as our brain detects what cones are firing
Opponent Process theory: exititory and inhibitory responses between cells - which accounts fro the “after image”
Bio/mono cular depth cues. requires input from one or two eye(s) for depth perception.
figure-ground perception.. and visual illusions: misperception of visual reality
effects in our preception: experience and culture affects our perception
Linear perception: lines .. such as when the two line are on the traintracks.
relative size: (closer or further)
interposition: (overlap)
Textures: (see texture closer up)
Ariel perspective :(distance is a blur)
figure ground perception: something is not the ground, even if it is on it.
Hearing
audition: study of how we interpret sound.
sound waves: carried by mediums.. Frequency goes with pitch and amplitude is volume.
olfaction: sense of smell when molecules are in the air.
Gustation: it is the sense of taste it can be bitter, sour, sweet, or salty.
Three Approaches to comprendre psychology
Traditional: OG. humans are basically and fundamentally (merely) “natural organisms” we can be understood by biology.
Broader and deeper: “humans are best understood” seeks to understand experience rather than explain behavior. so they are understood within their own world - they make meaning themselves, and direct their own life. and cannot be explained simply biologically (Existentialist tradition). People cannot be understood simply by biology.
Christian Worldview and the gospel view:Humans are moral beings with agency. Capable of meaning and change. morally sensitive and eternal in nature. I think that is true - afterall - each county has their “moral foundations”
makes the Broader and deeper more spiritual - we are eternal. and gift of agnecy, meaning, ect.
whitehead’s commitments: we are “being in the world” - living in an enviroment full of stimuli, or are we in a world with other humans with meaning?
Whitehead’s measurement problem: how do we measure love? is it a physical quantity?
Never Jump to conclusions, or assume one best explanation.
Chapter 6:
Attention: blocks out other stimuli while focusing on something specific.
Unconscious: perception without awareness. this can be
dichotic listening: (hear through each ear)
Blindsight: you can’t recognize what it is but your body can. you do not know or realize you are uncomfortable, though your body is showing it.
Stroop affect: the expiriment of the words Red, blue, yellow (causing our brain to jump to conclusion of what color the word is.)
Automatic Processing: able to perform a task without concious effort to do it.
Freudian consciousness: (iceberg): conscious: of thoughts, feelings, and images.
Stages of the Freudian consciousness: Consiousness: what is in front of us. Preconscious: accessible memories
Unconsciousness: desires, aggressive impulses, repressed memories.
Sleep:
circadian rythmn : is 24 hours of physciological changes: the pineal gland and melatonin regulates this. These can be interrupted by jet lag, or shift work. Pase Advance or Phase Delay can arise.
What regulates the circadian rhythm: the pineal gland and melatonin.
Waves during sleep: beta waves, alpha waves, theta waves, delta waves. Sleep comes and goes in 90 min. cycles. Paradoxical sleep: REM because there is high levels of brain activity but low levels of body movement .
Why is sleep needed? restores body and mind. without it, those abilities will decline.
sleep disorders: insomnia, and narcolepsy.
insomnia: (sleep onset or maintenance: difficulty falling asleep vs. difficuly staying asleep.
Sleep Apnea: needs to wake up to breath.
Narcolepsy: Repeated, sudden, and uncontrolable REM sleep attacks.
Dreams: are stories.. average of four per night… there can be Nightmares,
Night terrors (NREM dreams)
Lucid dreams: directing and knowing your dreaming.
The purpose of dreaming: problem solving, aid to memory, fulfillment, brain activity to simply stimulate your brain.
Hypnosis: Hypnotic induction and susceptibility.
Reason for Hypnosis: It can relieve pain, healing/immune functioning, cognitive (memory enhancement) and behavioral (no one can hypnotize you of what you couldn’t do. Neodissociation Theory: Hypnosis induces and altered dissociated state … Hidden observe: the person is aware of it. dissociation: the mind is dissociated from reality.
Drugs: changes mood, and neuronal affects.
Psychological dependance: withdraw after addiction, and meaning you are addicted to it.
Depressants:
alcholol: reduce social inhibititons
Barbitures: slow down centeral nervouse system and cause sleepiness. Mild euphoria, lack of restraint, relief of anxiety, impared memory/coordination
Opiates:relieve pain and makes euphoric conciousness.
Hallucinogens: extreme changes in conciousness
LDS: shift color patterns,changes shapes and objects,
Marijuana: induced relaxation , removes social inhibitions, intensifies sensory experience, and interferes with memory formation.
Entactogens:
stimulants and hallucinogens.
Relaxation, positive mood, emotional sensitivity and feelings, alters perception of time and physical enviroment. MDE, and MDMA. all drugs have a short and long term effects on yourself.
Stimulants: make you feel something Increase arousal.
Hallucinogens: alterates conciousness.
Nicotine: regulates arousal.
Amphetmines: maintains alertness and wakefulness
Cocaine: alertness and euphoria
CONDITIONING
Classical: an automatic conditioned response is associated with a stimulus, and it happens unconcously.
operant conditioning: Behaviors that are modified from their consequences
Example of conditioning: UCS: meal. UCR: Salvating CS: Tone. CR: Salivating (pavals dogs)
Little albert: UCS: loud noise UCR: fear, CS: White rat CR: Fear/Anxiety
operant conditioning : Shaping: Positive reinforcement for desired respose.. small steps towards a goal
Changing: rewarding every behavior in a seris of schedule of reinforcement links multiple behaviors.
Continuous reinforcement: each time after
Partial schefule: a reinforcement is provided only after a certain number of responses or after a certain amount of time has passed, which can help maintain motivation and encourage persistence in behavior.
Fixed-ratio schedule: every five times (x) you get a rewared. Fixed-interval (time)
Ways to reinforce:
positive: always means adding something good.
Negative: removing something unpleasant to reinforce desired behavior.
Positive punishment: Adding something unpleasant to discourage unwanted behavior.
Negative punishment: remove something
biological constraints:
instinctive drift: animals will eventually go back to their behavior.
and Behavioral prepardness: organisms will learn more quickly with certain stimuli.
Memory:: information is acquired, can be retrieved, and might become forgotten.
storage: retention in memory
retrieval: recovery of information
Levels of Processing: the depth of which we process information determines how well it is encoded, stored, and retrieved.
Brains like a computer: Encoding, Storage, Retrieval, Forget (if it is useless)
Iconic memory: visual memory, lasts up about a second
Echoic memory: auditory sensory memory, lasts up to 4 seconds or more.
Haptic memory: based on feeling (lasts up to 2 seconds.
Short term-memory: short term memory: can lst for 20 seconds.. Maintenance rehearsal: repeats info to oneself to keep it in short term
Sensory memory: stage of memory (mostly a few seconds) what you are thinking of right now.
Memory Diagram: know that..
Interference: Recall of one memory interfereing with recall of another one.
Trace Decay: memories fade.
Motivation: likley to forget memories that were traumatic. and remembering ones that are happier.
Encoding specificity: specific cues help encode memories: studying with gum.
Eyewitness testimony: Unreliable, Confidence has no relation to the accurate of their testimony. They can make things up in their mind.
Improving your memory: Overlearning, Distributed practive vs. massed practice (cramming)
and spreading out the memorization of information or learning of motor skill over seasons.
Using mnemic device: using acronymes, rhymes, poems, langage to help you remember things. Map of US for student names.
the Pegword method: (connecting two words) , and Link Method (associating notes or ideas with images)
Biopsychology of memory: neuroanatomy of memory. anatomical and chemical bases of memory. Hippocampus: plays an important role in converting short-term memories into long-term memories.
forgetting curve: remember only 20 perecent over a month..
Schema theory and Semantic Netowrk Theory:memories are stored as nodes of interconneced links that represent their relationship.
Constructive recall: you fill in the blanks with a schema. you might make up certain details even if it wasn’t actually like that (sooo bias? )