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Motion processing - Coggle Diagram

- - - - maximal excitation at preferred direction and rate of motion
  - - - Barlow & Lewick (1965)
        
        temporal delay between outputs of spatially separated detectors - motion is represented as a convergence of activity of spatially separate detector cells in at motion detector cell
      - Reichard (1957, 1961)
        
        basic idea: temporal filtering operations to process time delay on one component and a multiplication of two inputs to the motion detector
        
        "elaborated Reichard detector"
        
        temporally delayed outputs (TF) of spatial frequency filters SF1 and SF2 are multiplied with direct output, then averaged over time and then subtracted from each other - + for rightward - for leftward motion
  - - - moving edge has a constraint line of all possible direction (velocity) vectors
      - finding vector that is common to all constraint lines of an object
      - this vector must represent global motion of the object
- - - - respond to motion of components (single gratings) - local movement
      - found in V1
    - - respond to motion of plaid gratings - global movement
      - found in MT
    - - no ability to perceive motion
  - - - respond more quickly
      - mores sensitive to luminance
      - lower spatial acuity
      - less responsive to color
      - project to layers in V1 that in turn project to areas MT and MST in prostrate cortex