A critic says: 'Enactivism is anti-neuroscience — it claims the brain plays no role in cognition and that everything is in the body-environment interaction.' How should an enactivist respond?
AAgree — enactivism's focus on sensorimotor patterns makes neural processing explanatorily irrelevant
BDisagree — enactivism denies that neural processes are best understood as computations over internal representations, not that they exist or causally contribute to behavior
CAgree — the autopoiesis framework locates cognition in metabolic self-maintenance, which is not primarily a brain function
DDisagree — enactivism holds that the brain is the sole locus of cognition, but that it operates via sensorimotor loops rather than symbolic computation
This is one of the most common misreadings of enactivism. Enactivists do not deny that the brain exists or that neural processes matter. Their target is the *interpretation* of those processes: classical cognitive science treats them as computations over internal representations that 'stand for' the external world. Enactivism rejects this interpretive framework without rejecting neuroscience. The claim is that the right unit of analysis is the brain-body-world system, and that neural activity is best understood as part of an ongoing sensorimotor coupling, not as representational symbol manipulation.
Question 2 Multiple Choice
According to O'Regan and Noë's sensorimotor contingency theory, why does visual experience feel rich and complete despite our fovea resolving only ~2 degrees of visual angle at high resolution?
AThe brain performs rapid unconscious scanning and stitches a high-resolution internal image from successive fixations
BMost of what feels like 'seeing' is actually memory filling in expected details from past experience
CPerceptual richness comes from mastering the sensorimotor contingencies that govern how visual input changes with movement — we know how to explore the scene, so it feels available, not because it is stored
DPeripheral vision, though low-resolution, encodes enough information for the brain to reconstruct a complete scene representation
The enactivist answer is that perceptual richness is not a property of a stored internal image but of the agent's mastery of the sensorimotor patterns relating bodily movement to sensory change. You know that moving your eyes left will bring that part of the scene into focus; you know the sensorimotor contingencies that govern the scene's availability. This mastery — a kind of practical knowledge — constitutes perception, not the storage of a complete representation. The classical picture (options A and D) assumes a representation-building process that enactivists argue is neither empirically necessary nor the right explanatory account.
Question 3 True / False
For autopoietic enactivists like Varela and Thompson, sense-making — the constituting of a world of significance — begins with metabolism: even a single cell has a perspective (inside vs. outside) from which it enacts significance.
TTrue
FFalse
Answer: True
Autopoiesis (self-making) refers to the capacity of living systems to produce and maintain the very components needed for their own organization. This generates a perspective: the organism distinguishes inside from outside, and what sustains vs. threatens its organization. Thompson and Varela use this as the biological foundation for sense-making — cognition, on this view, begins not with neurons but with the self-maintaining organization of life itself. The continuity from cell to complex cognition is intentional: it roots mind in life without requiring a sharp boundary between cognition and basic biological processes.
Question 4 True / False
Radical enactivism denies that organisms respond differentially to their environments, since differential response would require contentful representational states.
TTrue
FFalse
Answer: False
This inverts radical enactivism's actual claim. Hutto and Myin do not deny that organisms respond differentially to their environments — clearly they do. Their claim is that such differential response does *not require* representational content. An organism can be selectively sensitive to features of its environment through dynamic sensorimotor patterns without those patterns being 'about' anything in the semantic sense. Content — states that represent the world propositionally — is, on their view, a late achievement tied to language and social practice, not a prerequisite for basic perception and action.
Question 5 Short Answer
Explain enactivism's central objection to the classical cognitive science view that cognition is computation over internal representations.
Think about your answer, then reveal below.
Model answer: Enactivism's objection is that classical cognitive science gets the explanatory direction backwards. It posits an internal representational system that mirrors the external world and drives behavior — the inside models the outside. Enactivists argue that this framework misidentifies the unit of analysis. The brain, body, and world form an ongoing coupled system; cognition is the dynamic activity of this system, not the manipulation of internal symbols. The sensorimotor patterns that constitute perception are patterns *of the whole system*, not properties of brain states in isolation. Asking 'what does the brain represent?' is, on the enactivist view, like asking 'what does the runner's leg represent?' — the wrong level of description for an intrinsically relational activity.
The deeper point is about what explanatory work 'representation' is supposed to do. If a representation is just a brain state that reliably covaries with external states, the enactivist can accommodate that. The target is the stronger claim that cognition consists in *computations* over internal states that have propositional content about the world — a claim enactivists argue is neither necessary to explain behavior nor the right scientific vocabulary for the phenomena.