- Replaces the hierarchical model 
- Says that primary visual cortex neurons respond to specific spatial frequencies
    - Number of light-dark or light-color cycles per degree of visual space
    - A figure with double as many bars in the same visual space would have double the spatial frequency

University of Michigan - Ann Arbor

- Hierarchical model
- Spatial-frequency filter model

Theories of visual object processing

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

Behavioral Neuroscience 8th Edition

This theory explains that visual input is processed hierarchically.
- Theoretically, lower-level neurons would process different facial features and send them to higher-level neurons, and you would end up with "grandmother neurons," "Halle Berry neurons," etc.
    - Have individual neurons that are responsible for recognizing each visual object

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