Final answer:
Sensory deprivation is a state of reduced sensory stimulation that can alter consciousness and perception.
Step-by-step explanation:
Sensory deprivation is defined as any major reduction in the amount or variety of sensory stimulation. It refers to a state where an individual is deprived of normal sensory input from the environment. This can occur through isolation, restricted sensory environments, or use of sensory deprivation tanks. Sensory deprivation can have various effects on an individual's perception and cognition, including altered states of consciousness, heightened sensitivity to remaining stimuli, and potential hallucinations.