7.4. The quantum-classical brain
None of the traditional idealist philosophies explains how the personal "I" experience arises. This is such a persistent and compelling experience that it must be explained.
Goswami proposes a model of the brain-mind that has a quantum part and a classical part that are coupled together. In justifying the quantum part of the brain-mind, Goswami notes that the mind has several properties that are quantum-like:
a) Uncertainty and complementarity. A thought has feature, which is instantaneous content, analogous to the position of a particle.It also has association, which is movement, analogous to the velocity (or momentum) of a particle. A thought occurs in the field of awareness, which is analogous to space. Feature and association are complementary. If we concentrate on one and clearly identify it (small uncertainty), we tend to lose sight of the other (large uncertainty).
b) Discontinuity, or jumps. For example, in creative thinking, new concepts appear discontinuously.
c) Nonlocality. The correlations in the observations of different observers is a form of nonlocality (see Section 4.3).
d) Superposition. Psychological experiments by A.J. Marcel [Conscious and preconscious recognition of polysemous words: locating the selective effect of prior verbal context, in Attention and Performance VIII (1980), (Ed., R.S. Nickerson)], too complicated to be discussed here, can be interpreted in terms of a model of the subject’s brain which exists in a superposition of possibilities until the subject recognizes the object.