logical (philosophical) behaviourism as a theory of mind, including Ryle's category mistake and its objections

What this dot point is asking

VCAA wants you to explain logical (philosophical) behaviourism as a response to the mind-body problem, reconstruct Ryle's diagnosis of dualism as a category mistake, and evaluate whether mental states really can be reduced to behaviour and dispositions. The high-band answer distinguishes logical behaviourism from the psychologist's methodological behaviourism, sets out the dispositional analysis precisely, and presses the perfect-actor and qualia objections.

What logical behaviourism claims

Logical behaviourism is a thesis about the meaning of mental terms. To say someone believes it will rain is to say they are disposed to take an umbrella, to assent if asked, to stay indoors, and so on. Mental terms do not name hidden inner objects; they are shorthand for patterns and dispositions of behaviour. This is distinct from the methodological behaviourism of psychologists like Watson and Skinner, who simply chose to study behaviour for scientific reasons. Logical behaviourism makes the stronger, philosophical claim that there is nothing more to having a mind than behaving and being disposed to behave in certain ways.

The dispositional element is essential. A belief need not show up in actual behaviour right now; it is a standing disposition that would issue in behaviour under the right conditions, much as solubility is a disposition of sugar to dissolve if placed in water.

Ryle and the category mistake

Gilbert Ryle, in The Concept of Mind, attacks Cartesian dualism as the dogma of the ghost in the machine. His central tool is the category mistake. He gives the example of a visitor shown the colleges, library and departments of a university who then asks where the university is, as though it were a further building. The visitor has miscategorised: the university is not an extra thing alongside the buildings but the way they are organised. Reconstructed:

1. Dualism treats the mind as a thing belonging to the same logical category as the body, a further object that performs hidden operations.
2. But mental talk does not refer to a further inner object; it describes how a person's behaviour is organised and disposed.
3. So treating the mind as an inner thing is a category mistake.
4. Once the mistake is removed, the mind-body problem dissolves: there are not two things needing to interact, only one behaving person described in two vocabularies.

This is the great attraction of behaviourism. It dissolves rather than solves the interaction problem, it makes mind publicly observable and so deflates the problem of other minds, and it fits a scientific worldview without positing immaterial substance.

Evaluation

The perfect-actor objection is the most damaging. A skilled actor or a Spartan who has trained themselves to show no pain can produce all the right behaviour and dispositions without the inner feeling, or suffer the feeling while suppressing every disposition. If pain just is the disposition to wince, then a person who never winces is not in pain, which is plainly false. Hilary Putnam's super-Spartans, who feel pain intensely but never display it, make the point vivid: behaviour and feeling can come apart, so feeling cannot be identical to behaviour.

The circularity objection presses on the analysis itself. To specify the behaviour a belief disposes us to, we must mention other mental states: a person who believes it will rain takes an umbrella only if they want to stay dry and believe the umbrella will help. The disposition cannot be stated without smuggling in further beliefs and desires, so the behaviourist programme of eliminating mental talk in favour of pure behaviour talk seems unachievable. Mental states come as an interconnected web, which is precisely the insight functionalism builds on.

Finally, behaviourism leaves out qualia. It captures what pain does but not what pain feels like. The felt quality of experience is exactly what the analysis discards, and many find that omission decisive.

Judgement: Ryle's category mistake is a genuine and lasting contribution, exposing how dualism inflates a way of describing behaviour into a hidden inner thing. But the strong reductive claim, that mental states are nothing but behaviour and dispositions, fails. The perfect actor shows feeling and behaviour can separate, the circularity objection shows mental states cannot be defined without other mental states, and qualia are left out entirely. Behaviourism is best read as a corrective to dualism that points the way to functionalism rather than as a tenable theory of mind in its own right.