Difference between revisions of "ICLM Journal Club"

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=<font color="blue">'''This Week - 14 May 2021 (9:30 a.m., via Zoom)'''</font>=
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=<font color="blue">'''This Week - 28 May 2021 (9:30 a.m., via Zoom)'''</font>=
  
<u>Speaker:</u> '''Chinmay Purandare'''
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<u>Speaker:</u> '''Sam  Gershman'''
  
<u>Title: </u> ''' “  A tale of two worlds - Hippocampal representations for real world space during virtual environment navigation ” '''
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<u>Title: </u> ''' “  Dopamine prediction errors are dead, long live dopamine prediction errors! ” '''
  
<u>Abstract:</u> Body fixed virtual reality (VR) introduces a dissociation between distal visual cues, and other sensory cues, raising the question of whether hippocampal neurons would encode the virtual visual space, or the real world, room space. Here we show that, CA1 neurons of rats performing VR navigation have small, highly precise, 2 sq cm place fields in the real world space explored by head movements. These results imply that multisensory association present in the real world plays a stronger role in hippocampal firing than navigational demands tied to virtual navigation.
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<u>Abstract:</u>   Everyone knows that the phasic activity of dopamine neurons reports reward prediction errors, right? Well, the story is more complicated. Some aspects of dopamine that appear incompatible with the prediction error hypothesis are in fact perfectly compatible when we look through the right theoretical lens. Other aspects of dopamine force us to rethink its computational function more fundamentally.
  
<u>Relevant Papers:</u> https://www.cell.com/cell/pdfExtended/S0092-8674(15)01639-6
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<u>Relevant Papers:</u> https://gershmanlab.com/pubs/Gershman17_dopamine.pdf
https://www.nature.com/articles/nn.3884
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https://gershmanlab.com/pubs/Gardner18.pdf
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https://gershmanlab.com/pubs/Kim20.pdf
  
 
='''About Us'''=
 
='''About Us'''=

Revision as of 03:58, 26 May 2021

This Week - 28 May 2021 (9:30 a.m., via Zoom)

Speaker: Sam Gershman

Title: “ Dopamine prediction errors are dead, long live dopamine prediction errors! ”

Abstract: Everyone knows that the phasic activity of dopamine neurons reports reward prediction errors, right? Well, the story is more complicated. Some aspects of dopamine that appear incompatible with the prediction error hypothesis are in fact perfectly compatible when we look through the right theoretical lens. Other aspects of dopamine force us to rethink its computational function more fundamentally.

Relevant Papers: https://gershmanlab.com/pubs/Gershman17_dopamine.pdf https://gershmanlab.com/pubs/Gardner18.pdf https://gershmanlab.com/pubs/Kim20.pdf

About Us

Introduction

The Integrative Center for Learning and Memory (ICLM) is a multidisciplinary center of UCLA labs devoted to understanding the neural basis of learning and memory and its disorders. This will require a unified approach across different levels of analysis, including;

1. Elucidating the molecular cellular and systems mechanisms that allow neurons and synapses to undergo the long-term changes that ultimately correspond to 'neural memories'.

2. Understanding how functional dynamics and computations emerge from complex circuits of neurons, and how plasticity governs these processes.

3. Describing the neural systems in which different forms of learning and memory take place, and how these systems interact to ultimately generate behavior and cognition.

History of ICLM

The Integrative Center for Learning and Memory formally LMP started in its current form in 1998, and has served as a platform for many interactions and collaborations within UCLA. A key event organized by the group is the weekly ICLM Journal Club. For more than 10 years, graduate students, postdocs, principal investigators, and invited speakers have presented on topics ranging from the molecular mechanisms of synaptic plasticity, through computational models of learning, to behavior and cognition. Dean Buonomano oversees the ICLM journal club with help of student/post doctoral organizers. For other events organized by ICLM go to http://www.iclm.ucla.edu/Events.html.

Current Organizers:

Megha Sehgal (Silva Lab) & Giselle Fernandes (Silva Lab). Please email us at iclm.journalclub@gmail.com if you would like to get regular updates regarding our journal club and weekly reminders.

Current Faculty Advisor:

Dean Buonomano


Past Organizers:

i) Anna Matynia(Aug 2004 - Jun 2008) (Silva Lab)

ii) Robert Brown (Aug 2008 - Jun 2009) (Balleine Lab)

iii) Balaji Jayaprakash (Aug 2008 - Nov 2011) (Silva Lab)

iv) Justin Shobe & Thomas Rogerson (Dec 2011 - June 2013) (Silva Lab)

v) Walt Babiec (O'Dell Lab) (2013-2014)

vi) Walt Babiec (O'Dell Lab) & Helen Motanis (Buonomano Lab) (2014-2017)

vii) Helen Motanis (Buonomano Lab) & Shonali Dhingra (Mehta Lab) (2017-2018)

viii) Shonali Dhingra (Mehta Lab) (2018-2020)

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