PSYC10003 Lecture Notes - Lecture 17: Receptive Field
13 Jun 2018
School
Department
Course
Professor
12th Apr ‘18
MBB1 Week 6; Lecture 17 Notes
Horses
highly stylised horse tattoo - which we can still recognise
-overlapping receptive fields = responsible for identifying image, composition & orientation
-each receptive field = small inputs, but we see image as smooth continuum
-brain translates small inputs (close together) = as smooth line, inputs that similar but further apart
= seen as discontinuous
-striate cortical arrangement
-hypercolumns in V1 - denser when nearer to central of field, less in the peripheral
-relating oriented receptive fields
-identify relationship between neighbouring & interactive fields
-topography of contextual modulations mediated by short-range interactions in PVC (Das.A &
Gilbert)
-aligned V1 receptive fields = positive interaction
-perpendicular (orthogonal) V1 receptive fields negatively intact
-laws of (good) continuity
-what are the important of laws in a scene?
-smooth continuity and abrupt changes = the end of one thing and the beginning of another
-nature isn’t made out of straight lines
-any given point in space; fine and broad change
-hard edges are made up out of larger receptive fields
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Horses highly stylised horse tattoo - which we can still recognise. Overlapping receptive fields = responsible for identifying image, composition & orientation. Each receptive field = small inputs, but we see image as smooth continuum. Brain translates small inputs (close together) = as smooth line, inputs that similar but further apart. Hypercolumns in v1 - denser when nearer to central of field, less in the peripheral. Identify relationship between neighbouring & interactive fields. Topography of contextual modulations mediated by short-range interactions in pvc (das. a & Aligned v1 receptive fields = positive interaction. Perpendicular (orthogonal) v1 receptive fields negatively intact. Smooth continuity and abrupt changes = the end of one thing and the beginning of another. Nature isn"t made out of straight lines. Any given point in space; fine and broad change.
