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Self-Oscillator Model of Bistable Perception with Interrupted Ambiguous Stimulus Explains Percept Stabilization and Reversal Rate Characteristics

Fürstenau, Norbert (2011) Self-Oscillator Model of Bistable Perception with Interrupted Ambiguous Stimulus Explains Percept Stabilization and Reversal Rate Characteristics. In: Program and Summary of ASSC 15, 15th Annual Meeting, Kyoto 2011 (15), Seite 70. Kyoto University. ASSC 15, 2011-06-09 - 2011-06-12, Kyoto, Japan.

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Offizielle URL: http://www.theassc.org/conferences/assc_15

Kurzfassung

Experiments with periodically interrupted ambiguous stimulus (e.g. the Necker cube) with short off-times (< 1 s) exhibit a maximum of the percept reversal rate of R ca. 36 min-1 at stimulus-off time toff ca. 200 – 300 ms (with ton = const = 300 ms (Orbach et.al.1966)(Kornmeier & Bach 2007). The subjective percept is stabilized with increasing toff-time due to recovery from fatigue. In this contribution it is shown that these results can be explained by a simple nonlinear dynamics attention fatigue model with delayed feedback (adaptive gain) which was recently used for explaining long range correlations of the reversal time series (Gao et.al. 2006)(Fürstenau 2010). The present model is related to the Synergetic order parameter approach of Ditzinger & Haken (1989). A reentrant phase oscillator equation (circle map) describes the dynamics of the perception state (order parameter) with feedback through the attention (gain) control parameter. It was shown earlier that the present model correctly predicts a number of features of multistable percept dynamics, e.g. the the hysteresis behavior between stationary perception states and theGamma-distribution of the percept dwell time statistics Here we demonstrate that also the stimulus - off induced percept stabilization and reversal rate maximum of interrupted stimulus experiments is correctly predicted. The maximum separates the nonstationary regime with toff < percept transition time ca. 200 ms from the stationary percept stabilization regime (toff ca. 200 ms). The absolute toff - value is determined by the time constants (fatigue, recovery, feedback delay) and noise power as parameters of the three coupled perception-attention-memory (PAM-) equations. A mapping of the PAM equations to basic Thalamo-Cortical reentrant loops is suggested. References Fürstenau, Norbert (2010). A nonlinear dynamics model for simulating long range correlations of cognitive multistability. Biol. Cybern., vol. 103. (3) 175-198 Gao, J.B., Merk, I., Tung W W, Billok V, White, K.D., Harris J G, Roychowdhury V P. (2006a) Inertia and memory in visual perception. Cogn. Process 7 105-112 Ditzinger, T., Haken, H. (1989). Oscillations in the Perception of Ambiguous Patterns. Biol. Cybern. ( 61) 279-287 Orbach. J., Zucker, E., Olson, R. (1966). Reversibility of the Necker Cube: VII. Reversal rate as a function of figure-on and figure-off durations. Percept. and Motor Skills (22), 615-618 Kornmeier, J., Ehm, W. Bigalke, H., Bach, M. (2007): Discontinuous presentation of ambiguous figures: How interstimulus-interval durations affect reversal dynamics and ERP’s. Psychophysiology, 44, 552-560

elib-URL des Eintrags:https://elib.dlr.de/74453/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Self-Oscillator Model of Bistable Perception with Interrupted Ambiguous Stimulus Explains Percept Stabilization and Reversal Rate Characteristics
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Fürstenau, Norbertnorbert.fuerstenau (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juni 2011
Erschienen in:Program and Summary of ASSC 15
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Band:15th Annual Meeting, Kyoto 2011
Seitenbereich:Seite 70
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iDORCID Put Code
ASSC , Kyoto UniversityNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Verlag:Kyoto University
Name der Reihe:ASSC Progam and Summary
Status:veröffentlicht
Stichwörter:ambiguous stimulus, cognitive bistability, interrupted stimulus, attention fatigue, nonlinear dynamics model
Veranstaltungstitel:ASSC 15
Veranstaltungsort:Kyoto, Japan
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:9 Juni 2011
Veranstaltungsende:12 Juni 2011
Veranstalter :Association for the Scientific Study of Consciousness &. Kyoto University
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:ATM und Flugbetrieb (alt)
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AO - Luftverkehrsmanagement und Flugbetrieb
DLR - Teilgebiet (Projekt, Vorhaben):L - Faktor Mensch und Sicherheit in der Luftfahrt (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Flugführung > Systemergonomie
Hinterlegt von: Fürstenau, Dr.phil.nat. Norbert
Hinterlegt am:27 Jan 2012 15:47
Letzte Änderung:24 Apr 2024 19:40

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