~Chapter 5 - Lecture Section 5.3 Flashcards
Any object or scene is going to undergo ___.
Multiple stages of analysis
Objects and Scenes activate ___.
multiple modules
Objects and Scenes are ___.
multi-dimensional
True or False: Different dimensions of an object are often processed by different regions
True
For the perception of faces, the start of Cortical processing starts in the ___
V1
For the perception of faces, what does the Fusiform Face Area (FFA) do?
The FFA is the specialized face identity Module
For the perception of faces, what does the Amygdala do?
The Amygdala identifies emotional aspects of the face (e.g. ☺)
For the perception of faces, what does the Superior Temporal Sulcus (STS) do?
Gaze direction and speech movements
For the perception of faces, what does the Frontal Lobe do?
The Frontal Lobe analyzes Attractiveness
What is the purpose of a Binocular Rivalry Task?
To try to explicitly link neural activity to object perception
What are the steps in a Binocular Rivalry Task?
The left and right eye are shown different pictures, and the subjects use buttons to indicate which image they are seeing whilst having an fMRI done. Instead of seeing a melded-up combination of both pictures, what happens is the input from one eye becomes suppressed, so it’s not perceived, and the person perceives the other picture.
What do the eyes do during a Binocular Rivalry Task?
After some amount of time, the eye spontaneously switches to the other, nobody can explain why the switching happens, but it is a well-known and repeatable phenomenon.
During the Binocular Rivalry Task when subjects reported seeing a face, where was more activity detected?
The Fusiform Face Area (FFA)
During the Binocular Rivalry Task when subjects reported seeing a house, where was more activity detected?
The Parahippocampal Place Area (PPA)
What did the Binocular Rivalry Task done on monkeys in the Infratemporal Cortex (IT) indicate?
It indicated that there was a very close association between activity in the IT and the monkeys’ perception
In the Binocular Rivalry Task done on monkeys, activity in ___ was not well correlated with the monkey’s perceptual report.
lower areas (e.g. V1)
During the Binocular Rivalry task done on Monkeys, when the monkey is reporting seeing the starburst, the butterfly neuron had ___ in its firing
no change
At a later time during the Binocular Rivalry task done on Monkeys, when they report seeing the butterfly, the butterfly encoding neuron now fires ___, so there was significant changes in the IT butterfly neurons activity, which were accompanied by subsequent change in the monkey perceptual report
robustly
Perception in animals and human subjects is more closely related to activity in ___ visual areas, and less related to activity in ___ visual areas
higher-order // lower-order
What is the purpose of Brain-Reading technology?
Brain-reading technology is related to object perception in that different modules in different regions in the brain will be activated by different stimuli, and so when you look at a particular object, there will be a pattern of activation
How does Brain-Reading technology work?
Instead of giving insight into how the brain actually produces perception of an object, brain-reading technology treats the activation pattern in your brain when looking at an object as a pattern recognition task
How is a Decoder created?
There are computer algorithms that receive fMRI imaging information and they use this information to create a Decoder
In fMRI, each chunk of brain that is activated is referred to as a ___.
Voxel
Each different image could create a ___ pattern of ___ over the visual areas
different // Voxels
