![[Search]](/static/images/search.gif){kind=small}
![[A-Z Index]](/static/images/az.gif){kind=small}
![[Contact]](/static/images/contact.gif){kind=small}
![[University of Cambridge]](/static/images/identifier2.gif){kind=small}
![[Talks.cam]](/static/images/talkslogosmall.gif)
Tuesday 10 November 2015, 16:00-17:00
Computational Neuroscience Journal Club
- 👤 Speaker: David Zoltowski (University of Cambridge)
- 📅 Date & Time: Tuesday 10 November 2015, 16:00 - 17:00
- 📍 Venue: Cambridge University Engineering Department, CBL, BE-438 (http://learning.eng.cam.ac.uk/Public/Directions)
Abstract
David Zoltowski will cover:
- Single-trial spike trains in parietal cortex reveal discrete steps during decision-making
- K W Latimer, J L Yates, M L R Meister, A. C. Huk and J. W. Pillow
- http://www.sciencemag.org/content/349/6244/184.abstract
Neurons in the macaque lateral intraparietal (LIP) area exhibit firing rates that appear to ramp upward or downward during decision-making. These ramps are commonly assumed to reflect the gradual accumulation of evidence toward a decision threshold. However, the ramping in trial-averaged responses could instead arise from instantaneous jumps at different times on different trials. We examined single-trial responses in LIP using statistical methods for fitting and comparing latent dynamical spike-train models. We compared models with latent spike rates governed by either continuous diffusion-to-bound dynamics or discrete “stepping” dynamics. Roughly three-quarters of the choice-selective neurons we recorded were better described by the stepping model. Moreover, the inferred steps carried more information about the animal’s choice than spike counts.
Series This talk is part of the Computational Neuroscience series.
Included in Lists
- All Talks (aka the CURE list)
- Biology
- Biology
- bld31
- Cambridge Centre for Data-Driven Discovery (C2D3)
- Cambridge Neuroscience Seminars
- CamBridgeSens
- Cambridge talks
- Cambridge University Engineering Department, CBL, BE-438 (http://learning.eng.cam.ac.uk/Public/Directions)
- CBL important
- Chris Davis' list
- Computational and Biological Learning Seminar Series
- Computational Neuroscience
- custom
- dh539
- dh539
- Featured lists
- Guy Emerson's list
- Hanchen DaDaDash
- Inference Group Journal Clubs
- Inference Group Summary
- Information Engineering Division seminar list
- Interested Talks
- Life Science
- Life Science Interface Seminars
- Life Sciences
- Life Sciences
- ME Seminar
- my_list
- ndk22's list
- Neuroscience
- Neuroscience Seminars
- Neuroscience Seminars
- ob366-ai4er
- other talks
- Quantum Matter Journal Club
- Required lists for MLG
- rp587
- se456's list
- Stem Cells & Regenerative Medicine
- TQS Journal Clubs
- Trust & Technology Initiative - interesting events
- yk373's list
- yk449
Note: Ex-directory lists are not shown.