PSYC 2390 Lecture Notes - Lecture 1: Neural Coding, Receptive Field, Fusiform Face Area

31 views2 pages
Inferior temporal IT Cortex there are neurons that respond best to face recognition.
Fusiform face area is where most facial recognition is localized to. Which is roughly equivalent to the
face area in the face recognition area in the temporal lobe.
Damage to the temporal lobe causes prosopagnosia differently recognizing the faces of familiar people.
May not be able to recognize friends for family or even their own reflection.
Selective adaption occurs when constant firing causes neurons to become fatigued or adapt.
1) The neuron fire rate decreases
2) The neuron fires less when that stimulus is immediately presented again.
Neural Plasticity or experience-dependent plasticity -- the response properties of neurons can be
shaped/ changed by perceptual experiences. Ex. If you rear an animal in an environment that contains
only vertical lines (Selective Rearing) the animal will develop more receptors for vertical lines and
essentially become blind to horizontal lines.
Contrast Threshold is the minimum intensity difference between two bars that can just be detected.
Charles gross studied the info temporal cortex in the tempera lobe. Monkeys that had their IT removed
had trouble differentiating between objects. Neurons in the IT respond to complex stimuli some
neurons respond to hands and some neurons respond best to faces.
The Fusiform face area responds best to faces.
The problems of neural representation for the senses has been called the problem of sensory coding.
The sensory code refers to how neurons represent various characteristics of the environment.
The idea that specific objects can be represented by the firing of a specialized neuron that responds only
to that object is called specificity coding.
Population coding is the representing of a particular object by the pattern of firing of a large numer of
neurons.
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Document Summary

Inferior temporal it cortex there are neurons that respond best to face recognition. Fusiform face area is where most facial recognition is localized to. Which is roughly equivalent to the face area in the face recognition area in the temporal lobe. Damage to the temporal lobe causes prosopagnosia differently recognizing the faces of familiar people. May not be able to recognize friends for family or even their own reflection. Selective adaption occurs when constant firing causes neurons to become fatigued or adapt: the neuron fire rate decreases, the neuron fires less when that stimulus is immediately presented again. Neural plasticity or experience-dependent plasticity -- the response properties of neurons can be shaped/ changed by perceptual experiences. If you rear an animal in an environment that contains only vertical lines (selective rearing) the animal will develop more receptors for vertical lines and essentially become blind to horizontal lines.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents