Class Notes (839,460)
Canada (511,348)
Brock University (12,137)
Biology (1,633)
BIOL 2P94 (40)
Lecture

Lecture 43

1 Page
103 Views

Department
Biology
Course Code
BIOL 2P94
Professor
Dirk De Clercq

This preview shows half of the first page. Sign up to view the full page of the document.
Description
Outline of Lecture 43 (03-07 B; Walker) Ocular Motor System I. Saccadic system - Function: to redirect gaze from one point to another (change fovea target) - Saccades are fast (peak velocity 500°/s, typical latency 200ms) and accurate - Target position info is first processed by the PPC and frontal cortex (especially the parietal and frontal eye fields) - Both the PEF and FEF project to the superior colliculus (which has an ocular motor map) which then projects to the brainstem saccade generator - The brainstem saccade generator consists of (omnipause,) burst and integrator neurons (be able to describe how these function together to give saccadic pulse) - The locations of the burst and integrator neurons differs for horizontal (pons) and vertical (midbrain) saccades - The cerebellum can modify saccades (from below, can predict lesion effects) - Fastigial nucleus facilitates contraversive and inhibits ipsiversive saccades - Vermis inhibits fastigial nucleus II. Pursuit system - Function: track moving objects (keeps target on fovea) - Pursuit consis
More Less
Unlock Document

Only half of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit