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Human Vection Perception Using Inertial Nulling and Certainty Estimation: The Effect of Migraine History.

Miller MA, O'Leary CJ, Allen PD, Crane BT - PLoS ONE (2015)

Bottom Line: This study examines the effect of the duration of visual field movement (VFM) on the perceived strength of self-motion using an inertial ing (IN) and a magnitude estimation technique based on the certainty that motion occurred (certainty estimation, CE).For the IN method, an inertial ing motion was delivered during this final 1s of the visual stimulus, and subjects reported the direction of perceived self-motion during this final second.Together, these results suggest that vection may be measured by both CE and IN techniques with good correlation.

View Article: PubMed Central - PubMed

Affiliation: School of Medicine and Dentistry, Rochester, NY, 14642, United States of America.

ABSTRACT
Vection is an illusory perception of self-motion that can occur when visual motion fills the majority of the visual field. This study examines the effect of the duration of visual field movement (VFM) on the perceived strength of self-motion using an inertial ing (IN) and a magnitude estimation technique based on the certainty that motion occurred (certainty estimation, CE). These techniques were then used to investigate the association between migraine diagnosis and the strength of perceived vection. Visual star-field stimuli consistent with either looming or receding motion were presented for 1, 4, 8 or 16s. Subjects reported the perceived direction of self-motion during the final 1s of the stimulus. For the IN method, an inertial ing motion was delivered during this final 1s of the visual stimulus, and subjects reported the direction of perceived self-motion during this final second. The magnitude of inertial motion was varied adaptively to determine the point of subjective equality (PSE) at which forward or backward responses were equally likely. For the CE trials the same range of VFM was used but without inertial motion and subjects rated their certainty of motion on a scale of 0-100. PSE determined with the IN technique depended on direction and duration of visual motion and the CE technique showed greater certainty of perceived vection with longer VFM duration. A strong correlation between CE and IN techniques was present for the 8s stimulus. There was appreciable between-subject variation in both CE and IN techniques and migraine was associated with significantly increased perception of self-motion by CE and IN at 8 and 16s. Together, these results suggest that vection may be measured by both CE and IN techniques with good correlation. The results also suggest that susceptibility to vection may be higher in subjects with a history of migraine.

No MeSH data available.


Related in: MedlinePlus

16s duration VFM stimulus.Individual subject PSE for inertial ing of visual field motion. Subjects are represented along the x-axis (subjects 1–11). Looming VFM trials are represented by solid red symbols; receding VFM trials by open blue symbols. A positive PSE indicates a stationary platform would be likely to be perceived as forwards self-motion. Circled subject numbers indicate a significant difference between these (p < 0.05). Error bars represent 95% CI.
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pone.0135335.g014: 16s duration VFM stimulus.Individual subject PSE for inertial ing of visual field motion. Subjects are represented along the x-axis (subjects 1–11). Looming VFM trials are represented by solid red symbols; receding VFM trials by open blue symbols. A positive PSE indicates a stationary platform would be likely to be perceived as forwards self-motion. Circled subject numbers indicate a significant difference between these (p < 0.05). Error bars represent 95% CI.

Mentions: The PSE was determined for each subject along with 95% confidence intervals (Fig 14), and combined data (Fig 15). Migraine subjects required a ing velocity of 1.18 ± 0.51 cm/s to their perception of motion, which was statistically greater than controls (PSE = -0.008 ± 0.56 cm/s, p = 0.01).


Human Vection Perception Using Inertial Nulling and Certainty Estimation: The Effect of Migraine History.

Miller MA, O'Leary CJ, Allen PD, Crane BT - PLoS ONE (2015)

16s duration VFM stimulus.Individual subject PSE for inertial ing of visual field motion. Subjects are represented along the x-axis (subjects 1–11). Looming VFM trials are represented by solid red symbols; receding VFM trials by open blue symbols. A positive PSE indicates a stationary platform would be likely to be perceived as forwards self-motion. Circled subject numbers indicate a significant difference between these (p < 0.05). Error bars represent 95% CI.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4539192&req=5

pone.0135335.g014: 16s duration VFM stimulus.Individual subject PSE for inertial ing of visual field motion. Subjects are represented along the x-axis (subjects 1–11). Looming VFM trials are represented by solid red symbols; receding VFM trials by open blue symbols. A positive PSE indicates a stationary platform would be likely to be perceived as forwards self-motion. Circled subject numbers indicate a significant difference between these (p < 0.05). Error bars represent 95% CI.
Mentions: The PSE was determined for each subject along with 95% confidence intervals (Fig 14), and combined data (Fig 15). Migraine subjects required a ing velocity of 1.18 ± 0.51 cm/s to their perception of motion, which was statistically greater than controls (PSE = -0.008 ± 0.56 cm/s, p = 0.01).

Bottom Line: This study examines the effect of the duration of visual field movement (VFM) on the perceived strength of self-motion using an inertial ing (IN) and a magnitude estimation technique based on the certainty that motion occurred (certainty estimation, CE).For the IN method, an inertial ing motion was delivered during this final 1s of the visual stimulus, and subjects reported the direction of perceived self-motion during this final second.Together, these results suggest that vection may be measured by both CE and IN techniques with good correlation.

View Article: PubMed Central - PubMed

Affiliation: School of Medicine and Dentistry, Rochester, NY, 14642, United States of America.

ABSTRACT
Vection is an illusory perception of self-motion that can occur when visual motion fills the majority of the visual field. This study examines the effect of the duration of visual field movement (VFM) on the perceived strength of self-motion using an inertial ing (IN) and a magnitude estimation technique based on the certainty that motion occurred (certainty estimation, CE). These techniques were then used to investigate the association between migraine diagnosis and the strength of perceived vection. Visual star-field stimuli consistent with either looming or receding motion were presented for 1, 4, 8 or 16s. Subjects reported the perceived direction of self-motion during the final 1s of the stimulus. For the IN method, an inertial ing motion was delivered during this final 1s of the visual stimulus, and subjects reported the direction of perceived self-motion during this final second. The magnitude of inertial motion was varied adaptively to determine the point of subjective equality (PSE) at which forward or backward responses were equally likely. For the CE trials the same range of VFM was used but without inertial motion and subjects rated their certainty of motion on a scale of 0-100. PSE determined with the IN technique depended on direction and duration of visual motion and the CE technique showed greater certainty of perceived vection with longer VFM duration. A strong correlation between CE and IN techniques was present for the 8s stimulus. There was appreciable between-subject variation in both CE and IN techniques and migraine was associated with significantly increased perception of self-motion by CE and IN at 8 and 16s. Together, these results suggest that vection may be measured by both CE and IN techniques with good correlation. The results also suggest that susceptibility to vection may be higher in subjects with a history of migraine.

No MeSH data available.


Related in: MedlinePlus