04 - Features, forms, and visual objects
Topics addressed in the lecture:
- Gestalt principles of perceptual organization
- Representation of complex patterns in the ventral visual pathway
- Feature selectivity
- Position invariance and complex-cell encoding
- Contour and object border encoding
- Figure-ground segregation
- Perception vs. sensation
Examples for question you should be able to answer:
- Neurons in different visual areas along the ventral pathway are selective for increasingly complex visual patterns. For which property of a visual stimulus do the neurons in higher visual areas of the ventral pathway become less selective?
- Explain how the Gestalt principle of “good continuation” could be supported by contextual modulation of receptive fields in primary visual cortex?
Important concepts:
- Perceptual grouping
- Contour integration
- Border ownership
- Surface enhancement
- Binding-by-synchronization
- Perceptual bi-stability
- Visual awareness
Topics addressed in the lecture:
- Stimulus-Sensation-Perception
- Structure of eye and retina
- Processing principles related to the structure of the retina
- Cone and rod photoreceptor types
- Encoding of spatial information
- Encoding of color information
Examples for questions you should be able to answer:
- What is hierarchical coding?
- What is retinotopy?
Important concepts:
- Labeled-line coding
- Hierarchical vs. parallel vs. horizontal processing
- Receptive field
- Retinotopy
- Local coding
- Coarse coding
Last update of this page: Jan 16, 2018