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/stoc...
Maye et al. (2007)
Slope of linear regression                                                               0.02correlation                  ...
Double Gal4 c105; c232*** p < 0.001, one way ANOVA
C105-GAL4                            Ellipsoid body R1R1                            Ellipsoid body R3, R4d         20 µm. ...
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
"Voluntariness": Behavioural Freedom and Decision-Making in Flies
"Voluntariness": Behavioural Freedom and Decision-Making in Flies
"Voluntariness": Behavioural Freedom and Decision-Making in Flies
"Voluntariness": Behavioural Freedom and Decision-Making in Flies
"Voluntariness": Behavioural Freedom and Decision-Making in Flies
"Voluntariness": Behavioural Freedom and Decision-Making in Flies
"Voluntariness": Behavioural Freedom and Decision-Making in Flies
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"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.

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

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

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