Neural representational geometry correlates with behavioral differences between monkeys

Kavli Affiliate: Stefano Fusi | Authors: Valeria Fascianelli, Fabio Stefanini, Satoshi Tsujimoto, Aldo Genovesio and Stefano Fusi | Summary: Abstract Animals likely use a variety of strategies to solve laboratory tasks. Traditionally, combined analysis of behavioral and neural recording data across subjects employing different strategies may obscure important signals and give confusing results. Hence it […]


Continue.. Neural representational geometry correlates with behavioral differences between monkeys

A neural model of proximity to reward

Kavli Affiliate: Costa, Rui | Authors: Paul Botros, Nuria Vendrell-Llopis, Rui Costa and Jose Carmena | Summary: Abstract Throughout learning, refinement of cortical activity in cortex, a process termed “credit assignment”, underlies the refinement of behavioral actions leading to reward. While previous research shows striatum’s role in linking behavior to reward, striatum’s role in linking […]


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Visuospatial information foraging describes search behavior in learning latent environmental features

Kavli Affiliate: C. Daniel Salzman | Authors: David L Barack, Akram Bakkour, Daphna Shohamy and C Daniel Salzman | Summary: Abstract In the real world, making sequences of decisions to achieve goals often depends upon the ability to learn aspects of the environment that are not directly perceptible. Learning these so-called latent features requires seeking […]


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Corticothalamic Neurons in Motor Cortex Have a Permissive Role in Motor Execution

Kavli Affiliate: Costa, Rui | Authors: Lina Marcela Carmona, Lin T Tun, An Kim, Rani Shiao, Michael D Kissner, Vilas Menon and Rui M Costa | Summary: ABSTRACT The primary motor cortex (M1) is a central hub for motor learning and execution, as it receives input from and broadcasts to a multitude of other motor […]


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Dynamic refinement of behavioral structure mediates dopamine-dependent credit assignment

Kavli Affiliate: Costa, Rui | Authors: Jonathan C.Y. Tang, Vitor Paixao, Filipe Carvalho, Artur Silva, Andreas Klaus, Joaquim Alves da Silva and Rui M Costa | Summary: Abstract Animals exhibit a diverse behavioral repertoire when exploring new environments and can learn which actions or action sequences produce positive outcomes. Dopamine release upon encountering reward is […]


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Versatile Multiple Object Tracking in Sparse 2D/3D Videos Via Diffeomorphic Image Registration

Kavli Affiliate: Liam Paninski | Authors: James Yu, Amin Nejatbakhsh, Mahdi Torkashvand, Sahana Gangadharan, Maedeh Seyedolmohadesin, Jinmahn Kim, Liam Paninski and Vivek Venkatachalam | Summary: Tracking body parts in behaving animals, extracting fluorescence signals from cells embedded in deforming tissue, and analyzing cell migration patterns during development all require tracking objects with partially correlated motion. […]


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Distributional coding of associative learning within projection-defined populations of midbrain dopamine neurons

Kavli Affiliate: Costa, Rui | Authors: Riccardo Avvisati, Anna-Kristin Kaufmann, Callum J Young, Gabriella E Portlock, Sophie Cancemi, Rui Ponte Costa, Peter J Magill and Paul D Dodson | Summary: Midbrain dopamine neurons are thought to play key roles in learning by conveying the difference between expected and actual outcomes. While this teaching signal is […]


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Increased mutation rate and interlocus gene conversion within human segmental duplications.

Kavli Affiliate: Michael Goldberg | Authors: Mitchell R. Vollger, William S. DeWitt, Philip C. Dishuck, William T. Harvey, Xavi Guitart, Michael E. Goldberg, Allison Rozanski, Julian Lucas, Mobin Asri, The Human Pangenome Reference Consortium, Katherine M. Munson, Alexandra P. Lewis, Kendra Hoekzema, Glennis A. Logsdon, David Porubsky, Benedict Paten, Kelley Harris, PingHsun Hsieh and Evan […]


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Uncertainty alters the balance between incremental learning and episodic memory

Kavli Affiliate: Daphna Shohamy | Authors: Jonathan Nicholas, Nathaniel Douglass Daw and Daphna Shohamy | Summary: A key question in decision making is how humans arbitrate between competing learning and memory systems to maximize reward. We address this question by probing the balance between the effects, on choice, of incremental trial-and-error learning versus episodic memories […]


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Rotating Frame Relaxation for Magic Angle Spinning Solid State NMR, A Promising Tool for Characterizing Biopolymer Motion

Kavli Affiliate: Ann McDermott | Authors: Ann E McDermott and Eric G Keeler | Summary: Magic angle spinning NMR rotating frame relaxation measurements provide a powerful experimental strategy to probe biomolecules dynamics, as is illustrated by numerous recent applications. We discuss experimental strategies for this class of experiments, with a particular focus on systems where […]


Continue.. Rotating Frame Relaxation for Magic Angle Spinning Solid State NMR, A Promising Tool for Characterizing Biopolymer Motion