10 - Adaptation
Topics addressed in the lecture:
- What is adaptation?
- Luminance adaptation
- the dynamic range of vision
- Threshold elevation by adaptation
- the contrast sensitivity function
- frequency and orientation specific adaptation
- Aftereffects
- motion aftereffects
- orientation aftereffects
- how to explain the tilt after effect
- complex aftereffects
Examples for questions you should be able to answer:
- Attention changes the response of the nervous system to a given stimulus. Why is this useful feature, rather than a failure of the system?
- Describe the change in luminance sensitivity after a period of luminance adaptation ends.
- What is the contrast response function?
- Describe and explain the tilt aftereffect, i.e. the misperception of an orientation after adaptation by a similar orientation.
- Give an example of a complex adaptation aftereffect.
- Describe the interaction between attention and adaptation. [for seminar participants]
Important concepts:
- Contrast response function
- Dynamic range of sensory systems
- Fourier analysis
- Spatial frequency tuning curves
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