PMID- 17239421
OWN - NLM
STAT- MEDLINE
DCOM- 20070507
LR  - 20181113
IS  - 0042-6989 (Print)
IS  - 0042-6989 (Linking)
VI  - 47
IP  - 4
DP  - 2007 Feb
TI  - Storage of an oculomotor motion aftereffect.
PG  - 466-73
AB  - Adaptation to motion produces a motion aftereffect (MAE), where illusory, 
      oppositely-directed motion is perceived when viewing a stationary image. A common 
      hypothesis for motion adaptation is that it reflects an imbalance of activity 
      caused by neuronal fatigue. However, the perceptual MAE exhibits storage, in that 
      the MAE appears even after a prolonged period of darkness is interposed between 
      the adapting stimulus and the test, suggesting that fatigue cannot explain the 
      perceptual MAE. We asked whether neural fatigue was a viable explanation for the 
      oculomotor MAE (OMAE) by testing if the OMAE exhibits storage. Human observers 
      were adapted with moving, random-dot cinematograms. Following adaptation, they 
      generated an oculomotor MAE (OMAE), with both pursuit and saccadic components. 
      The OMAE occurred in the presence of a visual test stimulus, but not in the dark. 
      When the test stimulus was introduced after the dark period, the OMAE reappeared, 
      analogous to perceptual MAE storage. The results suggest that fatigue cannot 
      explain the OMAE, and that visual stimulation is necessary to elicit it. We 
      propose a model in which adaptation recalibrates the motion-processing network by 
      adjusting the weights of the inputs to neurons in the middle-temporal (MT) area.
FAU - Watamaniuk, Scott N J
AU  - Watamaniuk SN
AD  - Department of Psychology, Wright State University, Dayton, OH 45435, USA. 
      scott.watamaniuk@wright.edu
FAU - Heinen, Stephen J
AU  - Heinen SJ
LA  - eng
GR  - R01 EY013886/EY/NEI NIH HHS/United States
GR  - R01-EY013886/EY/NEI NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
DEP - 20070118
PL  - England
TA  - Vision Res
JT  - Vision research
JID - 0417402
SB  - IM
MH  - Adaptation, Physiological
MH  - Eye Movements/*physiology
MH  - Figural Aftereffect/*physiology
MH  - Humans
MH  - Motion Perception/*physiology
MH  - Neurons/physiology
MH  - Optical Illusions/physiology
MH  - Photic Stimulation/methods
MH  - Pursuit, Smooth/physiology
MH  - Saccades/physiology
PMC - PMC2564621
MID - NIHMS18357
COIS- Competing interests statement The authors declare that they have no competing 
      financial interests.
EDAT- 2007/01/24 09:00
MHDA- 2007/05/08 09:00
PMCR- 2008/10/08
CRDT- 2007/01/24 09:00
PHST- 2006/05/26 00:00 [received]
PHST- 2006/09/19 00:00 [revised]
PHST- 2006/09/28 00:00 [accepted]
PHST- 2007/01/24 09:00 [pubmed]
PHST- 2007/05/08 09:00 [medline]
PHST- 2007/01/24 09:00 [entrez]
PHST- 2008/10/08 00:00 [pmc-release]
AID - S0042-6989(06)00453-6 [pii]
AID - 10.1016/j.visres.2006.09.030 [doi]
PST - ppublish
SO  - Vision Res. 2007 Feb;47(4):466-73. doi: 10.1016/j.visres.2006.09.030. Epub 2007 
      Jan 18.