Perception overview Peter

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Perception overview - Peter

• Peter covered
• Approaches to perception
• Binocular vision (corresponding retinal points,
  RDSs, rivalry, the matching problem, vertical
  disparity)
• Channels and receptive fields (V1 cell types -
  cortical simple, complex, endstopped cells
  serial and parallel processing - starting with X
  and Y cells)
• Organisation of V1 (columns, hypercolumns (eye
  dominance, orientation) and cortical
  magnification
• Perceptual implications of V1 channels (TAE,
  lateral inhibition, paradigms for studying
  channels, IOT of TAEs)
• Spatial Frequency channels (Contrast , CSF,
  octaves, Fourier analysis synthesis SF
  illusions and aftereffects)

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Perception overview - Peter

• Peter continued
• Extrastriate cortex (physiological and
  psychophysical evidence for the parallel
  processing of colour, motion, form and depth)
• Motion perception (real and apparent motion, the
  aperture problem, intrinsic/extrinsic
  terminators, plaids, long and short range
  apparent motion)
• Effects of experience (effects of restricted
  input during development, human infant visual
  capacities, why is the brain plastic in
  development? how psychophysics can estimate the
  duration of the human critical period)

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Perception overview - Darren

• Colour Perception (What is colour?, trichromatic
  theory, lightness constancy, Lands Retinex
  theory (colour constancy), neurophysiology of
  colour and opponent processes - from retina to
  V4, lightness perception complications)
• Object recognition (Scene segmentation, Template
  matching, the Pandemonium model, Marrs theory,
  Biedermans recognition by components,
  neurophysiology of IT, Faces)
• Interactions (A functional approach, Examples
  from previous lectures, An example from motion
  perception, An example from perceptual grouping,
  An example from colour perception)

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Exam Multiple choice 20 from PW, 10 from DB

• Stay calm
• Dont immediately select the most obvious
  alternative
• Faced with a question you dont know the answer
  to - use what knowledge you do have to try to
  work out what the answer is (the answer is
  literally right in front of you, after all!).
• (e) all of the above is not always correct
• Examples at http//vision.psy.mq.edu.au/peterw/m
  ultchoice.html

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Exam Short essays1 from PW, 1 from DB

• Read the question
• Read the question again
• Answer the question
• Try to demonstrate your understanding of the
  issue being asked about.
• The highest marks go to those who obviously get
  it, and who can fully explain it.
• Examples at
• http//vision.psy.mq.edu.au/peterw/psy237question
  s.html

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