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"Voluntariness": Behavioural Freedom and Decision-Making in Flies
 

"Voluntariness": Behavioural Freedom and Decision-Making in Flies

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Slides for my presentation at the BNA festival 2013 in London at the Barbican. The talk was during a session on volition and actions.

Slides for my presentation at the BNA festival 2013 in London at the Barbican. The talk was during a session on volition and actions.

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    "Voluntariness": Behavioural Freedom and Decision-Making in Flies "Voluntariness": Behavioural Freedom and Decision-Making in Flies Presentation Transcript

    • Björn BrembsUniversität Regensburg http://brembs.net
    • No empiricalsupport
    • Hans Flohr, neurobiologist“Mental states are always brainstates, meaning physicalstates”
    • Newton„s clockwork
    • We cannot predict the futurefor principle reasons
    • No empirical support
    • Deterministic
    • Stochastic
    • Deterministic
    • Reproducibility is notevolutionary stable
    • Behavioral variability in a constant stimulus situation: Actions, not responses
    • Maye et al. (2007) correlation Nonlinear (choice) Linear/stochastic (noise) nonlinearity
    • Maye et al. (2007)
    • Slope of linear regression 0.02correlation Nonlinear 0.01 Linear/stochastic 0 nonlinearity
    • Double Gal4 c105; c232*** p < 0.001, one way ANOVA
    • C105-GAL4 Ellipsoid body R1R1 Ellipsoid body R3, R4d 20 µm. Kahsai, Carlsson, & Nässel., 2012
    • Sathishkumar Raja
    • What are the functions ofspontaneous behavioral variability?
    • Pursuit-evasion contests & competition (courtship, predator- prey, territoriality, chess, sports etc.)
    • Exploration (find that hidden resource you would otherwise never find.)
    • Detection of re-afferent signals in the sensory stream (self vs. non-self) → operant behavior/learning
    • Action – Outcome Evaluation