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Navigable Slide Index

1. Introduction
2. The Enigma machine
3. Talk outline
4. What is a decision?
5. Some complex decisions
6. Studying the decision process - eye motion model
7. Direction discrimination task
8. Reaction time and proportion of correct decisions
9. Single neuron in vivo recordings
10. Sensory input to motor output
11. Motion energy
12. Sensory evidence
13. Sensory input to motor output - what lies between
14. Spatially selective, persistent activity
15. Freedom from immediacy
16. LIP activity during direction discrimination task
17. Average LIP activity in RT motion task
18. Diffusion to bound model (1)
19. Diffusion to bound model (2)
20. 4 choice decisions
21. Recent progress
22. Assigning confidence to a decision
23. Post decision wagering (1)
24. Post decision wagering (2)
25. Post decision wagering - brain activity (1)
26. Post decision wagering - brain activity (2)
27. Diffusion to bound mechanism - example
28. Log odds of making the correct choice (1)
29. Log odds of making the correct choice (2)
30. Fitting the model to the monkey's performance
31. Model predictions vs. neural data
32. Conclusions from confidence experiment
33. Probabilistic reasoning
34. Converting observation to weight of evidence
35. Probabilistic categorization task (1)
36. Probabilistic categorization task (2)
37. Probabilistic categorization task (3)
38. Probabilistic categorization task (4)
39. LIP activity during decision process (1)
40. LIP activity during decision process (2)
41. LIP activity during decision process (3)
42. LIP - evidence in units proportional to logLR
43. Conclusions from probabilistic classification
44. Intentional framework
45. Summary of emerging principles
46. From sensorimotor integration to cognition (1)
47. From sensorimotor integration to cognition (2)
48. Abstract decision task
49. From sensorimotor integration to cognition (3)
50. Brain size of man and monkey
51. Connecting dots to disease
52. Acknowledgements

Topics Covered

• Neurobiology
• Decision making
• Neural mechanisms of decision making
• Perceptual decisions
• Representation of evidence in visual cortex (area MT/V5)
• Direction selective neurons
• Representation of accumulated evidence in parietal cortex
• Lateral intraparietal area (LIP)
• Bounded evidence accumulation
• Diffusion models of decision making
• Confidence and "degree of belief"
• Post-decision wagering
• Probabilistic reasoning
• A neural mechanism for reasoning
• log likelihood ratio
• Decision making as a window on cognitive function in general
• Intentional framework for information processing

Links

Series:

• Cognitive Neuroscience

Categories:

• Neuroscience

Therapeutic Areas:

• Neurology

Talk Citation

Shadlen, M.N. (2011, August 16). The neurobiology of decision making: a window on cognition [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved October 4, 2023, from https://hstalks.com/bs/2066/.
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Publication History

• Published on August 16, 2011

Financial Disclosures

• Prof. Michael N. Shadlen has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.