Class Notes (837,006)
Canada (509,985)
Psychology (200)
PSYC 2265 (23)
Dave Cann (23)
Lecture 5

PSYC 2265 Lecture 5: PSYC 2265 – Lecture 5 – Perception (Part 2)
Premium

4 Pages
98 Views
Unlock Document

Department
Psychology
Course
PSYC 2265
Professor
Dave Cann
Semester
Winter

Description
PSYC 2265 – Lecture 5 – Perception (Part 2) Bottom-up Processing: Behavioural • Recognition-by-components theory (RBC) o We perceive objects by perceiving elementary features o Geons: three-dimensional volumes o Objects are recognized when enough information is available to identify the object's geons o Object recognition is a matter of separating, analyzing, and recombining features ➢ This occurs for all objects whether familiar or unfamiliar o Feature characteristics ➢ There are 36 geons (visual primitives) ▪ These are simple shapes that can be combined to form complex shapes ▪ View invariant: looks the same no matter the orientation o The process of perceiving: ➢ Information about the edges of an object are extracted first ➢ Nonaccidental features are encoded ▪ This means actual features of the object rather than some accident of the observer's perspective ➢ Parse object at boundaries ➢ Components are determined and matched with object representations in memory ➢ A match = the object is identified o Objects are less identifiable when it is difficult to recover their components ➢ Biederman (1985) ▪ Identification of degraded objects ➢ Biederman & Cooper (1991) ▪ Repetition priming evidence Helmholtz's Theory of Unconscious Inference (1860) • Related to top-down theory • Some of our perceptions are the result of unconscious assumptions we make about the environment o We use our knowledge to inform our perceptions • We infer much of what we know about the world • Likelihood principle: we perceive the world in the way that is "most likely" based on our past experiences Perceptual Organization • "Old" view – structuralism o Perception involves adding up sensations • "New" view – Gestalt psychologists o The mind groups patterns according to laws
More Less

Related notes for PSYC 2265

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