A qualitative analysis of sensory phenomena induced by perceptual deprivation


Abstract
Previous studies have shown that misperceptions and illusory experiences can occur if sensory stimulation is withdrawn or becomes invariant even for short periods of time. Using a perceptual deprivation paradigm, we created a monotonous audiovisual environment and asked participants to verbally report any auditory, visual or body-related phenomena they experienced. The data (analysed using a variant of interpretative phenomenological analysis) revealed two main themes: (1) reported sensory phenomena have different spatial characteristics ranging from simple percepts to the feeling of immersion in a complex multisensory environment and (2) the active contribution of the perceiver where participants report engaging in exploratory processes even when there is nothing to find. Detailed analysis of the qualitative data further showed that participants who reported more perceptual phenomena were more likely to report internal bodily sensations, move more during the experiment and score higher on the Revised Hallucination Scale than those reporting fewer percepts explicitly linking perceptual deprivation to somatic phenomena. The results demonstrate how the variety of sensory experiences induced by perceptual deprivation can give further insight into the factors mediating conscious awareness and may suggest ways in which the brain imposes meaning on the environment under invariant sensory conditions
Keywords Auditory  Ganzfeld  Interpretative phenomenological analysis  Misperception  Perceptual deprivation  Visual
Categories (categorize this paper)
DOI 10.1007/s11097-011-9233-z
Options
Edit this record
Mark as duplicate
Export citation
Find it on Scholar
Request removal from index
Revision history

Download options

Our Archive


Upload a copy of this paper     Check publisher's policy     Papers currently archived: 40,183
Through your library

References found in this work BETA

Neurophenomenology: A Methodological Remedy for the Hard Problem.F. Varela - 1996 - Journal of Consciousness Studies 3 (4):330-49.
Mutual Enlightenment: Recent Phenomenology in Cognitive Science.Shaun Gallagher - 1997 - Journal of Consciousness Studies 4 (3):195-214.

View all 7 references / Add more references

Citations of this work BETA

No citations found.

Add more citations

Similar books and articles

Sensory Phenomenology and Perceptual Content.Boyd Millar - 2011 - Philosophical Quarterly 61 (244):558-576.

Analytics

Added to PP index
2011-11-16

Total views
28 ( #287,406 of 2,237,432 )

Recent downloads (6 months)
4 ( #483,851 of 2,237,432 )

How can I increase my downloads?

Downloads

My notes

Sign in to use this feature