Log in to StudySoup
Get Full Access to UIUC - Psyc 224 - Class Notes - Week 1
Join StudySoup
Get Full Access to UIUC - Psyc 224 - Class Notes - Week 1

Already have an account? Login here
Reset your password

UIUC / Psychology / PSYC 224 / What causes hemineglect?

What causes hemineglect?

What causes hemineglect?


School: University of Illinois at Urbana - Champaign
Department: Psychology
Course: Cognitive Psychology
Professor: Kara federmeier
Term: Fall 2015
Tags: UIUC, psych 224, and Cognitive Psychology
Cost: 25
Name: Weeks 1-2 Notes
Description: Hey guys! Please let me know if I can clarify any information or type something out. I'm still getting back into the hang of writing legibly!
Uploaded: 09/04/2015
3 Pages 184 Views 3 Unlocks

Karen Kim (Rating: )

weeks Day 2

What causes hemineglect?

* Skipping chapter 2, but

info in there could be. helpful if necessary (brain




- cognitive psych seeks to make objective -

measurements - Observation |

- measuring 2 or more things to look for

-Advantages us disadvantages - Experimental design

How does the brain deal with ambiguity?

If you want to learn more check out What are the arguments of the interparadigm debate?

-independent variable

-manipulating factor d e bain T -dependent variable

- Data result of manipulated variable - confounding variables 3o- outside influences Don't forget about the age old question of What is the location of the atlantic ocean?

- amount of sleep, GPA, major, test

performance - Advantages gong- Get to control situation a tona We also discuss several other topics like How low can the stock price fall before you get a margin call?
If you want to learn more check out What's an early example of modern production under constant research and renovation?


What happens when we blink?

Dem and charactenistics o

Knowing they're in an experiment

may effect their performance -May confirm or deny experiment

based on participant -Effects of single variable

- known as "main effects". -can also look @ interactions

- effect of one variable consistent across

manipulation of the other variable - No interaction in ORGA - No difference in the prior knowledge

oswe st or beliefs that would change the outcome

Study Soup

Study SOU

- partial us. Full report If you want to learn more check out How does the embryo of a sea urchin develop?

-partial report is more effective -Properties of Iconic memory or

-visual sensory memory

large capacity or oro los - Rapid Decay - The NEXT stage of processing Don't forget about the age old question of What is the difference between hate speech and fight words?

Seems to be much more limited - What's the problem?

no presented wl more than we can

- Process -Focused Attention

en select to attend some into Dignore other

into - WHEN I WHAT KIND of information is

being blocked?

- @what stage is info lost?

- Early selection vs. late selection - Study ingstudyingtion attention

- Dichiotic listening task C Cherry, 1953)

- 2 difu nds are being playd into

each ear or tool Air Studying the ability to bous on

a one speaker when bombarded wl

two different speakers - Findings

- people really only paid attention to ou no one ear (couldn't even distinguish ennoden the other ear's language) big of

participants de notice whether .. nanen w the speakers were male or female

but retained no actual info




- Updating the model in

- ERP does show some filtering but

they are only stiffed, not blocked completely -Summary

- selection occurs early

- Not a completely limiting filter oth-some sort of selection b flexibility

depending on the situation - What kind of info is collected? -

- Evidence from patients a -Hemi neglect

- patients "ignone" one side of space

Stupically the left) -only see half of everything to

-Drawing half a picture, Shaving half

their face, even rejecting ownership

of parts of their own bodies -Suggests attention may be spatial - Spotight? In

- beam of chanced perceptual processing

that can be moved based on stimuli

Study Sous

How does the brain deal w! ambiguity?

- context, making assumptions and top down ito.

- Context ( contrasts)

-The eye can register background otom and daan attempt to adjust for it.

- Sharp differences in context

-get accentuated and cala bevery

helpfert (finding sharp edges - constant factors in context hana -Get ignored to draw out new or

unfamiliar info (noticing variability) -Making Assumptions -Shading ambiguity

- we can assume where light is coming from based on shading b

Shadows - Often assume light source is coming

from above - our brains recognize things in.

Shadow and make them appear

lighter to compensate for the shadowing -Grouping

-Gestatt principlals (proximity, similarity, continuation,


ยป Closure) wenga ha o -brains will group things together tchat

are closer in proximity or color (similarity) Good continuation


e al bebom -4 lines? 2 ? oney?

a ge na - Brains will make it one object hat could noter rather than 4 ble it continues

Study S

-Leads to more ambiguity!!

ex)" olive, the other reindeer"


"All of the other reindeer for -Variability in sound production

-phone me (particolar sounds) depend on ooo

- speaker (dialect, pitch, accent) - rate of speech

- emotional factors (screaming, crying ) - Citegorical Perception..

Leggagerates, - Auditory system leggo a tres differences

between sounds to further distinguish

ex) sounds "in between" "PA and BA are

either heard as one of the two o to avoid confusion

babies show this at an early age. -context effect

- auditory systems combines what context

has been provided by the visual system

- Baba o sounds like "Lala" if we see

the person making the facial motions for not "Lala"

-McGurk Effect - Audition : Summary!

-oocooblecenbeple is also made up of partial ambiguity

- uses context to clear up confusion (taking cues from - Taste and smell

- context quides taste perception

ex) people Levens experts) would define

a white wine tred food coloring as being

red wine - Perception Summary:

Study Soup

other senses)





Study Sou


Attention - Attention

- what happens when we blink?

eyes retain surroundings during a blinks so you're not shocked every time

you open your eyes too

Means that some son of scenery information is being stored by

the brain - sensory store

- subjective impressions on Change Blindness

- what / of people would

notice if they looked away and looked back and the person's appearance would change?

-50%! - It's easy to miss what you're

not looking for 3 - Also can be shown using the

fucker effect? - what does change blindness reveal?

Don't store as detailed of o z on at a report as people think a a habradarad a - can be tested by free recal

ty trials on

podremom has a time limit natoote hinal conic memory sa

zato now -partial report technique

instead of remembering hautente esta 9 numbers, bengable to pick con

d om now at kast a few numbers out on lataan reporting like 75% of info



- Closure

- we tend to assume that shapes

close diagramsin posted Slides) -Recap: Assumptions

- The visual system makes assumptions

about typical viewing Conditions and about what parts of a visual scene so together

- can't be turned off it can be misleading

Top Down"

-Recognizing objects is quicker in a congruent scene

than an incongrent scene.

- more likely to recognize woman sitting in

e classroom than on a city street - What does this say about our model of visual o perception


biect by outside world context recognition (where might a womansit?

I visual


Linput -vision: Summary

- process that creates a 3d representation

from our 2D perception through memory and

context o assumptions Clooking @ backgrounds to - Audition! (Hearing).

filling in blanks) - Speech Spectogram

- The stream is continuous (model in slides)

-The amount of darknessin spectogram

is where theres information (sound) but doesn't indicate where words end (word boundariess


Study Soul

Study Soup

Study Sow

al3/15 week 2

Roger Bag Sathe BGSL parede - Thought auestion:

imagine you are building an artificial vision system :

- uses grouping principles to determine #

of objects

to are extracted Features of objects and the theseene


-objects are identified serially, by

comparing features - How will the system behave wl an

object presented in isolation rather than

a complex scene 0 - Quicter recognition of - Is this similar to the pattern that

humans use? ton-kind of the opposite he - Breaking down the model

Grouping Slobject I Tobi 3 lobj 3



obiect recognition - what does recognition look like

in different types of contexts otrog- Would it turned out the same way lot na if thanse tants werent there?


Study Soup

tady sour


- Attention as a filter

- May be attention acts like a filcen im letting only desired into in watt

-If so, when does the dichotic listening

data suggest that this takes place?

- people could really only tell -

physical properties, but no real info was stored ( Pitch l Gender) - Suggests that filter is in the tode

middle of perceptual processing (early selection) -Problems,

-some higher level info seems to

pass through the filter an

- people notice their names Go n n-Individual differences in sensitivity verlorenus en - Cocktail party effect

- More likely to notice your own te od name if you have a low

working memory ani If the ears switched, you'd follow the original nam information instead of sticking to listening to

the one ear.

- Suggests late selection

filter - Are some people just better @ focusing? -Lateselection

- Selection after recognition

- Never ending debate - Support for early selection

- ERP studies in attention

- Simplified beeps to monitoring of brain

waves proves early secection


tudy sou

Page Expired
It looks like your free minutes have expired! Lucky for you we have all the content you need, just sign up here