An attention-like mechanism must exist for the cell to respond to simultaneous stimuli
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TODO: What is the answer to this? Seek it in de Duve book, and later chapters of this book.
Later in the book, Bray argues that cells are “conscious” in a certain sense of the word.
References:
Bray, Wetware (2009), p. 18
Indeed, it is probably necessary for something like attention to exist, since it is usually impossible for a cell to react simultaneously to two or more kinds of stimuli.