Unformatted text preview: est that selectivity increases
across the ventral visual pathway?
Probably; itʼs unclear How does the neural code for objects change as signals propagate
through the brain?
Answer: somewhere in the middle
Neurons are responding to
something about “objects” (not
just features) in IT Suggests a representation of
speciﬁc objects IT neurons are not all
speciﬁc object detectors No, wait - itʼs not?! IT Some high-level visual neurons seem to make sense ... IT But other IT neurons donʼt make any sense ... Likes these
a lot Likes these
a little Does not
like these IT The average IT neuron responds to 10% of all images
with a high ﬁring rate this suggests that IT neurons are not all speciﬁc object detectors One thing we know is that even the IT neurons that donʼt make
sense require “natural structure” in images to produce a response
(they donʼt respond to scrambled images) IT
respond well to
well to these this suggests that IT neurons are responding to something about the “global”
structure of objects (not just local featur...
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This note was uploaded on 09/08/2013 for the course BBB 217 taught by Professor Nicolerust during the Spring '12 term at UPenn.
- Spring '12