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Cog Psych
Exam 2
45
Psychology
Undergraduate 3
07/23/2011

Additional Psychology Flashcards

 


 

Cards

Term
Inattentional Blindness
Definition
if something is not paid attention to, it's as if it is not there
Term
Change Blindness
Definition
when something changes in the environment, if you aren't paying attention to it you won't notice the change
Term
Stroop Task
Definition

-telling the color of the ink instead of what it says

- results: when you have an automatic and controlled process and attempt to do the controlled one, the automatic task will interfere

Term
Focused Attention
Definition

-selective attention

-paying attention to one task and ignoring other things

Term
Divided Attention
Definition
dividing your attention between at least two tasks
Term
Auditory Attention
Definition
Term
Dichotic Listening
Definition

-listening to stimulus in both ears while ignoring one and repeating the other(shadowing)

-the unattended message is not remembered (barely remember meaning or if it is in another language)

Term
Early Filtering
Definition

-Broadbent

-we filter out the detected stimuli before processing occurs

Term
Late Filtering
Definition

- Filter after recognition

-don't notice unattended information after it's recognized unless the recognition stage decides it's important (e.g. own name, etc.).  So meaning is assigned to all stimuli, but only attended stuff reaches conscious awareness.

Term
Overt Attention
Definition

-eye movements

- You can't process all messages completely, so select one channel, usually by eye movements. This is the typical way attention is moved around:  you move your eyes and head to focus on the relevant information...ignored information is outside of vision or in peripheral vision

 

Term
Covert Attention
Definition
-keeping your eyes away from what you're paying attention to
Term
Spatial Cueing Task
Definition

-Posner

- Subject is asked to look at a fixation point in the center, then press a button when a rectangle flashes on the screen. Arrow points to the side on which there is an 80% chance that the box will appear.   People are faster when the arrow is correct (valid case, 80% of the trials) than when the arrow is incorrect and points in the direction opposite to where the box appears (invalid case, 20% of the trials).

Term
Spotlight (zoom-lens) Model
Definition
-proposal that attention is like a spotlight that you move around in visual space and can be zoomed in on an area
Term
Feature Integration Theory
Definition

-Treisman

-we have "maps" for features and when we;re looking for multiple features we must "glue" the maps

Term
Feature Search
Definition

- searching for something that can be distinguished from the background by a unitary feature

- independent of number of distractors

 

Term
Conjunction Search
Definition

-no single feature that will allow you to discriminate the object

-requires attentional "glue"

- dependent on number of distractors

Term
Visuospatial Neglect
Definition

- Observed principally in patients with right parietal lobe damage.

-They neglect to process the contralateral (left) sides of displays to the point of reporting about them.

-This is despite being able to recognize objects in the left side of visual space if they are presented without something else on the right side of space.

Term
Disengage Deficit
Definition

-the visuospatial neglect is just difficult disengaging attention

- So attention stays locked on to the right side of space, can't break loose

-Maybe disengagement mechanism is in right hemisphere, and that's why most neglect cases show damage here.

 

Term
Unbalanced Competition
Definition

-hemispheres inhibit one another

-damage to one hemisphere causes the other hemisphere to dominate

Term
Visual Memory
Definition

-we remember more visual info than other info

-poor when: 

*for unattended and unimportant details

*when stimuli lack meaning

*when things are very similar

-good recognition has:

*attention to details

*meaningfulness and relevancy

*distinctives alternatives

Term
Standing's Pictures
Definition

-first showed 2560 then 10000 pictures

-estimated if showed 1,000,000 subjects could remember 730000 in 2 days

Term
Richer Code
Definition

-there are a lot of information so we have details to pick from

-4 stimulus conditions

 

-memory test: old/new recognition test

 

-immediately and 7 weeks after 

-results:

-memory for all 3 picture types(photos, line drawings, and embellished line drawings) better than memory for verbal descriptions

 

-no difference between 3 visual conditions (suggests amount of detail isnt critical factor)

Term
Dual Code Hypothesis
Definition

-we code stimuli with a visual code and a verbal code

-there are concrete words (can be coded both verbally and non-verbally) and  abstract words (can be coded verbally but not non-verbally)

-EVIDENCE:

*concrete words are remembered better

Term
Cognitive Maps
Definition

-internal representation of our physical environment that store the spatial features of the external world

-we learn the spatial layout of a map, not just the sequence of turns (rats in maze w/food)

-we use shortcuts and heuristics

Term
Subjective Clusters
Definition
-conceptual knowledge (semantic memory) affects imagined representations of distances
Term
Observer Perspective
Definition
-a person's knowledge of where they come from effects how long they think its going to take to get there
Term
Working Memory
Definition

-newer concept (developed out of STM models)

-emphasizes both storage and active processing of info

-memory for small amount of info for a few seconds 

Term
Raven's Progessive Matrices
Definition
-subjects must determine which item will come next in a sequence 
Term
Anterograde Amnesia
Definition

-Inability to remember events occurring after brain injury.

-effects the hippocampus

-Patient H.M. had impaired LTM and normal WM

 
Term
Working Memory Model
Definition

-Baddely

-we have a phonological buffer, visuospatial sketchpad, and a center executive

Term
Phonological Loop
Definition

-sound based storer

-

Term
Explicit Memory
Definition

-conscious recollection

-declarative knowledge (recall and recognition)

Term
Implicit Memory
Definition

-unconscious change

-includes procedural knowledge (i.e. riding a bike)

-priming

Term
Psychogenic Amnesia
Definition
-amnesia due to psychological, not physical trauma
Term
Organic Amnesia
Definition
-amnesia that results from actual brain damage
Term
Retrograde Amnesia
Definition

-inability to retrieve explicit info prior to trauma

-temporally graded:

*memory of old info is typically intact

*more recent info is more vulnerable

Term
Mirror Reading
Definition
}-Participants :
*Korsokoff’s amnesics and N.A. versus normal
*Severe Anterograde Amnesia (Can’t learn new things)
} -Methods 
}
*Experiment included 50% repeated words across 4 days
*Non-repeated words: implicit
*Repeated words: implicit + explicit  
}-Results
*For new words, Normals and Amnesics improved about the same (implicit only)
*For old words, Normals were better than amnesics (implicit + explicit).
 
Term
Tower of Hanoi
Definition

-test number of moves to reach solution

-amnesics and control performed similarly 

Term
Priming: word fragment completion
Definition

-priming=complete more old fragments than new

-result: amnesics show normal priming, but poor recognition memory (they dont remember having seen the words)

Term
PET studies of normals
Definition

-subjects given word list, and word stem list

-Explicit test: say the word from the list that began with that stem

-Implicit test: say the first word that comes to mind

-explicit results: hippocampus and frontal lobe activity increased

-implicit results: posterior visual area activity decreased

Term
Depth of Processing
Definition
}-Words can be encoded at different levels:
*Physical (appearance of letters)
*Acoustic (sound of word)
*Semantic (meaning of word)
Term
Semantic Memory
Definition

-general knowledge; memory of facts

-

Term
Episodic Memory
Definition

-memory of personal episodes

-tied to time and place

-personal perspective

Term
Categorization
Definition

-allows inferences about members of a class

-they're helpful b/c we treat similar things the same

-not always based on physical similarities 

Term
Pigeons
Definition

-taught them to peck one of four keys depending on whether a picture of a cat, flower, car, or chair was shown. Got reinforcement for pressing the correct key for each type. After training (40 per day for 30 days), they were 64% accurate at pecking with new exemplars (81% accurate with old exemplars). Chance was 25%. Worse than humans, but well above chance. 

 
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