Neuroscience

Articles and news from the latest research reports.

167 notes

Imagination can change what we hear and see

A study from Karolinska Institutet shows, that our imagination may affect how we experience the world more than we perhaps think. What we imagine hearing or seeing ‘in our head’ can change our actual perception. The study, which is published in the scientific journal Current Biology, sheds new light on a classic question in psychology and neuroscience - about how our brains combine information from the different senses.

image

"We often think about the things we imagine and the things we perceive as being clearly dissociable," says Christopher Berger, doctoral student at the Department of Neuroscience and lead author of the study. "However, what this study shows is that our imagination of a sound or a shape changes how we perceive the world around us in the same way actually hearing that sound or seeing that shape does. Specifically, we found that what we imagine hearing can change what we actually see, and what we imagine seeing can change what we actually hear."

The study consists of a series of experiments that make use of illusions in which sensory information from one sense changes or distorts one’s perception of another sense. Ninety-six healthy volunteers participated in total. In the first experiment, participants experienced the illusion that two passing objects collided rather than passed by one-another when they imagined a sound at the moment the two objects met. In a second experiment, the participants’ spatial perception of a sound was biased towards a location where they imagined seeing the brief appearance of a white circle. In the third experiment, the participants’ perception of what a person was saying was changed by their imagination of a particular sound.

According to the scientists, the results of the current study may be useful in understanding the mechanisms by which the brain fails to distinguish between thought and reality in certain psychiatric disorders such as schizophrenia. Another area of use could be research on brain computer interfaces, where paralyzed individuals’ imagination is used to control virtual and artificial devices.

"This is the first set of experiments to definitively establish that the sensory signals generated by one’s imagination are strong enough to change one’s real-world perception of a different sensory modality", says Professor Henrik Ehrsson, the principle investigator behind the study.

(Source: ki.se)

Filed under imagination multisensory perception psychiatric disorders mental imagery psychology neuroscience science

  1. neuroarte reblogged this from neurosciencestuff
  2. akikoxkee reblogged this from raskolnika
  3. raskolnika reblogged this from neurosciencestuff
  4. auti-stim reblogged this from neurosciencestuff
  5. thenicolexoxo reblogged this from neurosciencestuff
  6. fourthhour reblogged this from baphometkin
  7. contemporaryslob reblogged this from baphometkin
  8. shinybarricade reblogged this from neurosciencestuff
  9. awaken-veil reblogged this from elfboi
  10. elfboi reblogged this from neurosciencestuff
  11. bwansen reblogged this from enki2
  12. saraahlynne reblogged this from neurosciencestuff
  13. imaginedenn reblogged this from neurosciencestuff
  14. dayringer reblogged this from neurosciencestuff
  15. mieszkoog reblogged this from neurosciencestuff
  16. eedente reblogged this from neurosciencestuff
  17. piggypostings reblogged this from neurosciencestuff
  18. grumpimus-prime reblogged this from neurosciencestuff
  19. realityexpulsion reblogged this from neurosciencestuff
  20. willow-wanderings reblogged this from neurosciencestuff
  21. vanitylovedme reblogged this from neurosciencestuff
free counters