Can altered states increase vividness of experience?
Short Answer
Altered states can dramatically increase experiential vividness through enhanced sensory processing, heightened emotional intensity, and reduced cognitive filtering that normally dampens perceptual input.
Why This Matters
This occurs because altered states often suppress the brain's default mode network and executive control systems that typically filter and organize sensory information. The reduction in top-down processing allows raw sensory data to reach consciousness with greater intensity, while changes in neurotransmitter activity can amplify emotional and perceptual responses. This demonstrates how consciousness operates on a spectrum rather than a binary state, with filtering mechanisms playing a crucial role in shaping subjective experience.
Where This Changes
The degree of vividness enhancement varies significantly across different altered states - meditation may produce subtle increases while psychedelic states can create overwhelming sensory intensity. Some altered states like certain stages of sleep or dissociative episodes may actually reduce experiential vividness despite altered perception.