5. The Positive Semantic Argument

As I emphasized on Wednesday, phenomenal concepts are, in a sense, private. They are acquaintance-based indexicals that aren’t governed by any set of public norms, and which don’t defer to the expertise of others. Nor do they make any commitment to the underlying nature of the states referred to. When …

4. The Negative Semantic Argument

It is important to realize that first-personal phenomenal consciousness is all-or-nothing. Any given mental state is either phenomenally conscious or it isn’t. It makes no sense to talk of degrees of phenomenal consciousness, or partial phenomenal consciousness. This is another place where some of the distinctions drawn in Monday’s post …

3. Reducing the Phenomenal

The phenomenal concept strategy has been pursued by many different authors. The basic idea is to explain the problematic thought experiments (zombies, Mary, and the explanatory gap) in terms of the distinctive set of concepts we can use when thinking about our own access-conscious nonconceptual mental states. People differ over …

2. The Global Workspace

The best theory of phenomenal consciousness is one that equates it with the contents of the so-called global workspace (a.k.a. working memory)—or rather, with a subset thereof. Why a subset? Because although conceptual information can be bound into the contents of perceptual and imagistic states, and made available in the …

Why all conscious thinking is sensory-based

This final post addresses an obvious puzzle: why is reflective thinking sensory based? We can, after all, think about all sorts of abstract nonsensory topics. We think about God, the size of the universe, the mental states of other people, the validity of arguments, arithmetical facts and other mathematical entities, …

System 2 reasoning (and a word about mindwandering)

Most psychologists who study human reasoning have converged on some or other version of dual-systems theory. System 1 is a set of systems that are supposed to be fast, inflexible, and unconscious in their operations, issuing in the initial intuitions many of us have when presented with a novel reasoning …

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