What is cognition? Although cognition is one of the core concepts in the behavioral and cognitive sciences, there is no generally accepted answer. For example, in his classic book Cognitive Psychology, Ulrich Neisser defined cognition as: “all processes by which the sensory input is transformed, reduced, elaborated, stored, recovered, and used.” (1967, p.4) But this definition seems to include many artifacts, like tape recorders, and organisms, like plants, that were not intended to be labeled as cognitive. The classical cognitive sciences that grew up under the influence of people like Neisser used a much more limited interpretation of cognition: not all forms or information processing did suffice. The implicit extra constraint in this definition was that cognition involves the kind of information processing that also occurs in human intelligence, where it is described in terms like perception, planning, thinking and action. (Calvo & Keijzer, 2008, p. 249)More cognitivism in plants, it seems.
Calvo, P. & Keijzer, F. (2008), "Cognition in Plants". In Baluska, F. (Ed.) Plant-Environment Interactions: From Sensory Plant Biology to Active Plant Behavior. (pp. 247-266)