Object based vision
Boundaries, contours, and segmentation all fall into gestalt and emergence
There wont be laws for these groupings. Theyre all informal.
To manipulate gestalt principles, evident in animals that use camouflage
Object based vision
Rods only have one kind of pigment
Cones have three kind of pigment
One way to experience rod vision is to wander around at night
Rods are sensitive to movement and small amounts of light
Most things look the same color and ha
The more irrelevant the info, the less likely you are to remember any of it.
Narratives are how people remember.
Class experiment was first performed in Virginia
Its good just like Gestalt telephone since it always works.
Generalization curves s
Steven cosselin, first to study imagination
How do you study imagination?
He had people memorize maps
Wanted to see if imagination had spatial arrangement
Gave them maps to scan: an island.
They would then draw it, and if they
Linguistic, spatial, and categorization are all higher level cognitive functions
Serving the task will be a buffer
Idea is you can show memory system is being used by task and buffer should
Two ways to fill working memory
Theres an adjacent relationship in vision, somatosensory and audition.
Things adjacent in sight are adjacent in cortex
Receptive fields get 3mm in cortex
Fovea is stretched in cortex because it has loads of receptive fields,
each which get 3
Well study ideas. What are ideas?
Refrenterniality- fancy way of saying and picking something specific to study
Ideas are intentional. We cant see or hear ideas.
Subject matter is far from obvious
1st distinction- the tools
o In as
Figures own their boundary
The way boundary wraps around is how you see it
When you have bilateral symmetry w/o one object owning boundary, people are fast
to recognize it.
Reaction time (in comp.) is hard to understand
Very variable, easy to un
Smells like clean spirit, Discussion questions
Experimental Psychology (PSYC/CHLD 3404) Dr. Hughes
What was the main hypothesis?
What was the IV, DV, and how was each operationally defined?
What research method was used (e.g, experiment, survey/co
Conception of memory
Bridging of time to make world we live in.
All ideas that we developed through analyses of Gestalt
We dont experience disconnected events. We experience them as relative to one
another. Relationships are important
Wasnt till 1890 that memory was conceptualized as something that could be studied in a
Only person to do this was Ebbinghaus.
Gave himself nonsense to learn. Measured how long it took relearn nonsense.
Discovered power law.
Lose lots real
41. What is visual search and what issues does it address in theories of attention?
type of experiment w/ targets and distracters. It breaks the world into elements, it
addreses whether we see the world in parallel or binding problem, spatial or feature s
Statistical race gain
You can distinguish between serial and parallel by adding targets. (According to
Multiple target paradigm- you can have more than one target, it can be all targets
Terminate trial after seeing any target
Signal detection theory
All data feed has some ambiguity
Theres no perfect solution
Psychologists delay w/ this everyday
There is no signal
There is signal
Say no signal
Say theres a signal
From 50s to present, computers have been used to understand the human
World -> Mind -> Behavior
1 regime- problems that can be solved by computer
2 regime- problems that can be solved in principle over time.
3 regime- problems that cant b
You cant do two visual tasks simultaneously. Same w/ auditory tasks
This led early on to a distinction between how attention opens out and you can
do multiple things or how you can narrow it down and do one thing at a time.
Test will cover all of visual search and imagination studies
Singleton search functions
What experiments involved
What they meant
How they relate to binding problem
Understand target absence and slope
Kausands comet- existence of capacit
Imagination is paritucaly rich in visual and auditory modalities
How much of imagination is knowledge based?
How do you know when your imagining or when you actually see something
Hired by Bell labs to reflect on psychology
When people think about randomness in case of coin flips, believe that heads and tails
should be equal.
The law of small numbers
Random process will attempt to achieve equal outcomes in the short term
Must gamblers fallacy
Basic Stats for Psy.
1. A group of participants provides both their income level and their relationship status. Is there a
relationship between these two? That is, does one's income category depend on one's