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Psychology Test 3
Sensation & Perception, Learning
92
Psychology
Undergraduate 2
10/21/2009

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Cards

Term
Sensation 
Definition

When you detect physical energy  emitted or reflected by physical objects

**Occurs when energy from external environment stimulates receptors in the sense organs

Term
Perception
Definition
Process the brain uses to organize and interpret sensory information
Term
Sense Receptors
Definition

Convert physical energy into electrical energy that can be transmitted as nerve pulses to the brain

 

Term
Specific Nerve Energies
Definition

We hear because we have an ear that has autonomically structures that make hearing possible, leading to different

EX: If a tree falls in the woods and no one is there to hear it...does it make a sound?

 

Term
Stimulus Energy
Definition
light, sound, smell
Term
Sensory Receptors
Definition
Eyes, nose, ears
Term
Synesthesia
Definition

Rare condition in which stimulation or one sense also evokes a sensation in another

(Able to taste color)

EX: "Cow"--If we were in a dark room--heard, smell, touch, taste- we would be able to identify that it is a cow.

Term
Absolute Threshold
Definition

Smallest amount of energy that a person can detect reliably.

EX: Sit in a dark room, asked to see a flash of light

~Some would always see

~Others would never see

Term
Difference Threshold
Definition
Smallest difference in stimulation that can be reliably detected "just noticeable difference"
Term
Single Detection Theory
Definition

Divides the detection of a sensory signal into a sensory process and a decision process

**Helps with knowing when to give people breaks

Term
Adaptation
Definition

Reduction of sensory responsiveness that occurs when stimulation is unchanging

**Prevents us from having to respond continuously to unimportant information

Term
Deprivation
Definition

Absence of normal levels of sensory stimulation.

*Most people enjoy limited periods of deprivation

Term
Selective Attention
Definition

"Brain Spotlight"-singles out the things that are most important at that moment

**Downside- miss out on much that is going on around us

Term
Unintentional Blindness
Definition
What people will miss when they are focused on something else.
Term
Vision
Definition
More information about external world comes to us through our eyes
Term
Hue
Definition
Visual experience specified by color names and related to wavelength of light
Term
Brightness
Definition

related to the amount of light emitted from or reflected by an object

**most of what we see if reflected light

Term
Saturation 
Definition
related to the complexity of light waves
Term
Cornea
Definition
Protects eye and bends light towards lens
Term
Lens
Definition
Focuses on objects by changing shape
Term
Iris
Definition
Controls amount of light that gets into eye
Term
Pupil
Definition
Light reaches the retina, image is upside down, brain processes information and image turns it right side up
Term
Retina
Definition
Neural tissue lining the back of the eyeballs interior containing the receptors for vision
Term
Rods
Definition
less sensitive, details, respond to dim light (dark adaptation)
Term
Cones
Definition
involved in color vision
Term
Why does the eye move back and fourth?
Definition
Eyes are scanning the image, allows the brain able to fill in the gaps
Term
Trichromatic Theory
Definition

Red, blue, and green receptors

When colors combine, other colors are formed

Term
Opponent-Process Theory
Definition

Pairs of colors are organized antagostically

Blue/Yellow

Black/White

One color is being stimulated while the other is being inhibited.

Term
Gestalt Theory
Definition

Proxmity

Closure

Similarity

Continuity

Term
Proximity
Definition
Things close to one another are grouped together
Term
Closure
Definition

The brain fills in gaps to see complete forms

Term
Similarity
Definition
Things that are a like are perceived together
Term
Continuity
Definition
Lines and patterns tend to be perceived as continuing in time and space
Term
Binocular Cues
Definition

Visual cues that require the use of both eyes

 

Term
Convergence
Definition
The turning inward of the eyes, when an object comes near us
Term
Retinal Disparity
Definition
Slight difference in lateral separation between two objects as seen by the left and right
Term
Monocular Cues
Definition
only one eye is used
Term
Interposition
Definition
When an object interposed between the viewer and a second object, partly blocking the view of the second object, the first object is perceived as being closer
Term
Linear Perspective
Definition

When two lines known to be parallel appear to be coming together to converging

*Imply the existence of depth

Term
Shape Constancy 
Definition
Hold a pie plate directly in front of your eyes perceive it as round, put it on the table shape becomes elliptical, still identify the plate as round.
Term
Location Costancy
Definition
As you drive down the highway, telephone poles and trees fly by---our retina. We know that they are still there
Term
Size Constancy
Definition
Object that is close produces a larger image
Term
Color Constancy
Definition
Apple remains red indoors and outdoors due to sensory adapatation
Term
Loudness
Definition

Intensity of pressure wave

More energy contained in the wave, the higher it is at its peak

Term
Pitch
Definition

Frequency of a pressure wave

The number of timer per second the wave cycles through a peak

Term
Timbre
Definition

Complexity of a pressure wave

Pure tone = 1 frequency 

Usually what we hear is complex waves consisting of several subwaves

Term
Organ of Corti
Definition
Structure in the cochlea containing hair cells that serve as the receptors for hearing
Term
Cochlea
Definition
Snail-shaped, fluid-filled, organ containing corti, where the receptors for hearing are located
Term
Taste
Definition

Taste buds: nest of receptors cells

**respond to different chemical sensation

-Depends on how many receptors are firing, patter is analyzed by brain and determines it is a certain taste/smell

Term
5 main taste
Definition
sweet, sour, bitter, salt, umami
Term
What affects taste?
Definition

Culture

Genetics

Learning-food poisoning, unable to eat that food ever again

Learn to like foods after more exposure

Term

Smell

Definition
Air born chemicals enter nasal cavity, circulate to roof of nasal cavity-hair like receptors detect specific chemical molecules
Term
Touch
Definition

A function of all receptors in our skin

-Pressure receptors

-Temperature receptors

*All receptors have different sensitivity

Term
Gate-Control Theory of Pain
Definition

Experience pain whether the impulses get past a neurological "gate" in the spinal cord and the impulse reaches the brain

**More receptors on the finger tips, there fore there is more space in the brain for the impulses from the finger tips

Term
Semi-Circular Canals
Definition
Sense organs in the inner ear, contributes to equilibrium by responding to rotation of the head
Term
Equilibrium
Definition

Balance

Allows us to know where our body is

Term
Kinethesis
Definition

Where our body parts are in relation to one another

EX: As long as a person was walking in daylight-walked with their eyes, when the lights were turned off they were no longer able to walk

Term
How do we experience pain?
Definition

Pain= important warning signal

Pain can be psychological and physical (chronic pain)

Term
Critical Periods
Definition

Infants miss out on an experience during a crucial time period, perception will be impaired

EX: cat grown in drum with vertical lines, play with pen vertically not horizontally 

Term
Emotions
Definition
Expectations can affect perception
Term
Beliefs
Definition

Placebo= treatment has no active ingredient, yet some people will respond

Beliefs and expectations will release our endorphines

Term
Cognition
Definition
Inputting information, making decisions based on those inputs
Term
Concept
Definition
A mental category that groups objects, relations, or qualities having common properities
Term
Prototype
Definition

Especially representative example of a concept

Fruit=Basic

Apple= PROTOTYPE

Term

Proposition

Definition

A unit of meaning that is made up of concepts and expresses a single idea

(MC Exam)

Term
Schema
Definition
Integrated mental network of knowledge, beliefs, and expectations concerning a particular topic
Term
Image
Definition
Mental representations that resembles what it represents
Term
Subconscious Processes
Definition
Mental processes occurring outside of conscious awareness but accessible when needed
Term
Non-conscious Processes
Definition

Mental processes occurring outside of and not available to consciousness

**Learning how to drive manual car, at first thinking outloud, talking through it. After a while, able to eat, or text

Term
Implicit Learning
Definition

Set of procedures you aren't able to verbalize

EX: Sever mental damage- teach them how to play piano, ask them if they can they say no. Put hands on the piano they are able to play perfectly

Term
Mindlessness
Definition

Mental inflexibility, inertia, and obliviousness in the present context

EX: Morning routine

Term
Reasoning
Definition
Drawing of conclusions or inferences from observations, facts, or assumptions
Term
Deductive Reasoning
Definition

A conclusions follows from a set of premises

 

Premise true+Premise true=conclusion must be true

Term
Inductive Reasoning
Definition
Used in scientific reasoning, conclusion probably follow from a set of premises
Term
Heuristic
Definition

Suggest that a course of action, guides problem solving, but does not gurantee and optimal soultion

SHORT CUT

Term
Dialectical Reasoning
Definition

Process in which opposing factors or ideas are compared with a view to determining the best solution

(Pro/Con List)

Term
Algorithm
Definition

Problem solving strategy guaranteed to produce a solution

**Problem solving

Term
Reflective Judgement
Definition

Very similar to critical thinking

-question assumptions

-evaluate/integrate evidence

**Assumptions limit us in terms of possibilites

 

Term
Barriers: Mental Set
Definition
Give us a set of numbers ask us what is the pattern. We all assume it is a number problem when in reality it is a word problem
Term
Barriers: Hindsight Bias
Definition
Once something has happened, 100% knowledge of outcome
Term
Barriers: Conformation Bias
Definition

Tendencacy to pay attention only to information that confirms ones own belief

EX: Cocktail Party Theory- Involved in a conversations and you hear your name across the room in another conversation, that now has your full attention

Term
Cognitive Dissonance
Definition

Belief is inconsistent with behavior

--Change it by either changing behavior, or changing your belief

EX: "I believe in going green," just threw out a can out the window, some one calls you out. You make a promise to change your recycling ways

Term
g factor
Definition
A general intellectual ability assumed by theorists to underlie specific mental abilities and specifics
Term
IQ Test
Definition
Measures intelligence by ability to problem solve
Term
Mental Age
Definition

MA/CA x 100

 

**Problem is that mental age doesnt always increase

Term
Psychometrics
Definition

Measurement of mental abilities, traits, and processes

**Bell shaped curve,

mean = 100

standard dev.=115

Term
Stanford/Binet IQ Test
Definition

1904

Test measured a child's memory, vocabulary, and perceptual discrimination

Term
David Weschler IQ Test
Definition

Most used test

Full Scale IQ

Verbal IQ

Non-Verbal IQ

 

Term
Cultural effect on test taking
Definition

Scores are affected by expectations. It is expected that African Americans, Woman, and Latinos will do worse on test. 

 

EX: Asian woman give a test with a passage about men doing better, one given without the passage. Woman who didn't read the passage did better

Term
Stereotype Threat
Definition
Burden of doubt a person feels about his or her performance due to negative stereotypes about his or her groups abilites
Term

Triarchic Theory

(Sternberg)

 

Definition

  1. Componential- compare, analyze and evaluate 
  2. Experiential- ability to come up with new solutions
  3. Contextual- Apply things you know to every day life

Term
Gardner's Theory
Definition
Multiple intelligence, in a good education system need to look at children's strengths 
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