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The “Necker-Zeno model”, a model for bistable perception inspired by the
quantum Zeno effect, was previously used to relate three basic time scales of
cognitive relevance to one another in a quantitative manner. In this paper,
the model predictions are compared with experimental results obtained under
discontinuous presentation of an ambiguous stimulus. In addition to earlier
results for long inter-stimulus intervals, we show that the reversal dynamics
according to the Necker-Zeno model is also in agreement with new results for
short inter-stimulus intervals. Moreover, we refine the model in such a way
that it accounts for the distribution of “dwell times” (inverse reversal rates).
Finally, we indicate applications concerning the modification of cognitive time
scales under conditions of psychopathological impairments and meditationinduced
modes of awareness.