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Action strengths

Action strengths. State values. Prediction error. 2. 3. 1. 4. 1. Extension 1: Support for representing option identifiers. White & Wise, Exp Br Res, 1999.

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Action strengths

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  1. Action strengths State values Prediction error

  2. 2 3 1 4

  3. 1 Extension 1: Support for representing option identifiers

  4. White & Wise, Exp Br Res, 1999 (See also: Assad, Rainer & Miller, 2000; Bunge, 2004; Hoshi, Shima & Tanji, 1998; Johnston & Everling, 2006; Wallis, Anderson & Miller, 2001; White, 1999…)

  5. Miller & Cohen, Ann. Rev. Neurosci, 2001

  6. From Curtis & D’Esposito, TICS, 2003, after Funahashi et al., J. Neurophysiol,1989.

  7. Fuster, Neuron, 2001

  8. Extension 2: Option-specific policies 2

  9. Bear, Connors, & Paradiso, 2001

  10. O’Reilly & Frank, Neural Computation, 2006

  11. Aldridge & Berridge, J Neurosci, 1998

  12. Extension 3: Option-specific state values 3

  13. Kringelbach, Nature Rev Neurosci, 2005

  14. Padoa-Schioppa & Assad, Nature, 2006

  15. Schoenbaum, et al. J Neurosci. 1999 See also: O’Doherty, Critchley, Deichmann, Dolan, 2003

  16. Extension 4: Temporal scope of the prediction error 4

  17. Schoenbaum, Roesch & Stalnaker, TICS, 2006

  18. Roesch, Taylor & Schoenbaum, Neuron, 2006

  19. Daw, NIPS, 2003

  20. --- objectives/overview -- actor-critic as link to brain -- HRL implementation in actor-critic -- opportunity to further introduce hrl and brain… -- apologies to both 1/2s of the audience (for covering stuff each learned in 1st year grad school)

  21. --- Overview of actor critic -- main putative neural correlates -- then talk about 4 changes demanded by HRL -- 1. option rep’n -- 2. (actor) option-specific policies (and selection of options) -- 3 (critic) option-specific value functions -- 4 (critic) change in scope of prediction error …then move on to neural correlates… “selective activity in OFC did not consistently represent the identity of particular odors, the motivational characteristics of the associated reinforcer, or preparation for the motoric response. Instead it would appear that the selective activity in OFC during accurate performance represents the integration of information regarding the significance of a particular cue (or cues) with subsequent behavior.”

  22. Additional questions: --Hierarchical representations in PFC? -- Origins of options (subgoals)? -- Purposive vs. habit?

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