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- Page navigation anchor for RE: FROM VISUAL INPUTS TO CORTICAL REPRESENTATIONS: HOW TO EXPLAIN THE REPORTED INCREASE IN INFORMATION CONTENT?RE: FROM VISUAL INPUTS TO CORTICAL REPRESENTATIONS: HOW TO EXPLAIN THE REPORTED INCREASE IN INFORMATION CONTENT?
The foremost works by Chariker et al. (2016, 2018) lead to conclusions that can be encompassed in a more general theory of brain function. In their works, Chariker et al. state that:
1) their computational model of the primary visual cortex (V1) of the macaque monkey tackles the issue of the extreme sparseness of magnocellular LGN inputs to the macaque primary visual cortex. Indeed, they demonstrated that, even with such sparse input, it is possible to produce robust orientation selectivity, as well as continuity in the orientation map.
2) Intracortical interactions play a major role in all aspects of the visual functions of the model.
3) Interactions among cortical neurons in local populations produce dynamics not explained by single neurons
4) They point to the need of greater emphasis on population dynamics and, where possible, a move toward data-driven, comprehensive models.
5) Detailed analysis of their modelss multiple firing events showed that gamma-band activity was multidimensional in its sources.
6) A large fraction of these inputs came from recurrent excitation within the local circuit, but feedforward and feedback excitation also contributed, either through direct pulsing or by raising the overall baseline.Taken together, these clues point towards the occurrence of multidimensional activities of the brain. Various brain activities and their correlated mental functions (including the above mentioned model of visua...
Show MoreCompeting Interests: None declared.