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Imagination Can Influence What We See & Hear

Imagination Can Influence What We See and Hear Have you ever had difficulty determining if you actually saw or heard something or if it was just imagination?

If the answer is yes, then you may be reassured as new research from Sweden shows that our imaginations may affect how we experience the world more than we perhaps think.

Researchers determined that what we imagine hearing or seeing “in our head” can change our actual perception.

The study sheds new light on a classic question in psychology and neuroscience — about how our brains combine information from the different senses.

“We often think about the things we imagine and the things we perceive as being clearly dissociable,” says Christopher Berger, a doctoral student at Karolinska Institutet 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.

‚ÄúSpecifically, we found that what we imagine hearing can change what we actually see, and what we imagine seeing can change what we actually hear.”

As found in the scientific journal Current Biology, 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” said Henrik Ehrsson, Ph.D., the principal investigator behind the study.

Source: Karolinska Institutet

Imagination Can Influence What We See & Hear

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2015). Imagination Can Influence What We See & Hear. Psych Central. Retrieved on June 24, 2018, from https://psychcentral.com/news/2013/06/28/imagination-can-influence-what-we-see-hear/56581.html

 

Scientifically Reviewed
Last updated: 6 Oct 2015
Last reviewed: By John M. Grohol, Psy.D. on 6 Oct 2015
Published on PsychCentral.com. All rights reserved.