From: Intermittent ambiguous stimuli: Implicit memory causes periodic perceptual alternations
Journal of Vision. 2009;9(3):3. doi:10.1167/9.3.3
Figure Legend:
Relation between oscillation frequency and blank duration. (A) Perception of an ambiguous sphere during a half-hour
session (box car filtered with a window size of 5 presentations to enhance clarity). Perception appears to oscillate faster
in the condition with a shorter blank duration (left). (B) Sections of the power spectra corresponding to panel A. The
power peaks at a higher frequency in the condition with a shorter blank duration (left). Because power was normalized by
dividing by the total area under the curve, it has no unit in this panel. (C) Data for all observers. Increasing the blank
duration ( x-axis) caused perception to oscillate at a lower frequency ( y-axis), for both rivalry ( n = 6) and the sphere ( n
= 4).ofError
bars are
standard errors of
theAssociation
mean. In this
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normalized
oscillation frequencies
each
Date
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7/28/2017
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for Research
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separately by dividing by the frequency observed at the shortest blank duration. This compensated for the broad inter-