perceiving form ii object recognition kimberley clow office hours: mon 10am-12pm [email protected]
TRANSCRIPT
Perceiving Form IIObject Recognition
Kimberley Clow
Office Hours: Mon 10am-12pm
http://instruct.uwo.ca/psychology/215a-570
OutlineAttention
Attention Based BlindnessRecognition by ComponentsView-Based Recognition
Neurological PathwaysLearning To SeeFace Perception
Prosopagnosia Greebles
Object Based AttentionFixation Cue (Prime) Test
• • •
• • •
Valid
• • •
Invalid(same object)
Invalid(different object)
Sequence of events
A Closer Look
Trials 1-3
inattention trial
recognition test
more trials
divided attention trial
more trials
fullattentiontrial
Beyond Attention
1) How can we recognize objects when we can’t see all the parts?
2) How can we distinguish among objects that share common features?
3) How can we recognize group membership of objects that look very different?
4) How can we recognize the same object in multiple orientations?
Evidencecu
mul
ativ
e re
spo
nse
(sp
ike
s)
post-stimulus time (ms)
upright45 degrees off
horizontal
135 degrees offinverted
5000
150
120
90
60
30
0
Human EvidenceLetters
Objects
95% confidence interval around chance level
% c
orre
ct r
espo
nses
Stimulus Orientation