Perceptual Experience of Visual Motion Activates hMT+ Independently From the Physical Reality: fMRI Insights From the Looming Pinna Figure. (November 2016)
- Record Type:
- Journal Article
- Title:
- Perceptual Experience of Visual Motion Activates hMT+ Independently From the Physical Reality: fMRI Insights From the Looming Pinna Figure. (November 2016)
- Main Title:
- Perceptual Experience of Visual Motion Activates hMT+ Independently From the Physical Reality: fMRI Insights From the Looming Pinna Figure
- Authors:
- Budnik, U.
Hindi-Attar, C.
Hamburger, K.
Pinna, B.
Hennig, J.
Speck, O. - Abstract:
- The human motion processing area, hMT+, has been labeled the critical neural area for processing of real and illusory visual motion in radial 2D patterns. However, the activation in hMT+ during perception of illusory rotation in the looming double-circular Pinna Figure (PF) generated in 3D space has not been observed yet. To do so, an optic-flow like motion of rings (looming) in PF was generated on a computer screen. A psychophysically precise nulling procedure allowed quantifying the individual amount of the perceived illusory rotation in PF (PI) for each participant. The interpolation of the individual illusory motion parameters created a subjectively non-rotating PF and a physically rotating control stimulus of identical rotary strength as the PI. The physically rotating control was a double-circular figure which diverged from PF only in its arrangement of luminance gradients. In a 3-Tesla scanner, participants were presented with a random order of rotating and non-rotating figures (illusory, real, no rotation, and nulled PI). Both types, illusory and real rotation, when equal in perceptual strength for the observer, were found to be processed by hMT+.
- Is Part Of:
- Perception. Volume 45:Number 11(2016)
- Journal:
- Perception
- Issue:
- Volume 45:Number 11(2016)
- Issue Display:
- Volume 45, Issue 11 (2016)
- Year:
- 2016
- Volume:
- 45
- Issue:
- 11
- Issue Sort Value:
- 2016-0045-0011-0000
- Page Start:
- 1211
- Page End:
- 1221
- Publication Date:
- 2016-11
- Subjects:
- equalized perceptual strength -- nulling procedure -- subjective illusory rotation -- real rotation -- radial 2D figure -- double-circular figure -- luminance gradients -- Pinna-Figure (PF) -- Pinna Illusion (PI) -- looming -- 3D -- motion parameter -- motion interpolation -- hMT+ -- functional brain imaging -- fMRI 3T
Perception -- Periodicals
Perception -- Periodicals
Perception
Periodicals
153.705 - Journal URLs:
- http://pec.sagepub.com/ ↗
http://www.pion.co.uk/ ↗ - DOI:
- 10.1177/0301006616652051 ↗
- Languages:
- English
- ISSNs:
- 0301-0066
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
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- 7130.xml