A novel deep neural network models two streams of visual processing from retina to cortex
Minkyu Choi, Kuan Han, Xiaokai Wang, Zhongming Liu· COSYNE 2023
Human vision uses two neural pathways, namely the ventral and dorsal streams. The two streams are structurally segregated from the eyes to the primary visual cortex and continue onto the ventral tempo
Mar 12, 2023
Paradoxical self-sustained dynamics emerge from orchestrated excitatory and inhibitory homeostatic plasticity rules
Saray Soldado-Magraner, Michael J. Seay, Rodrigo Laje, Dean Buonomano· COSYNE 2023
Cortical networks have the remarkable ability to self-assemble into dynamic regimes in which excitatory positive feedback is balanced by recurrent inhibition. This inhibition-stabilized regime is incr
Mar 12, 2023
Inhibitory gating of non-linear dendrites enables stable learning of assemblies without forgetting
Mikołaj Maurycy Miękus, Christoph Miehl, Sebastian Onasch, Julijana Gjorgjieva· COSYNE 2023
Neuronal assemblies — groups of neurons with strong recurrent connectivity — are thought to be the basic building blocks of perception and memory in the brain: representations of specific concepts. Ac
Mar 12, 2023
V4 neurons are tuned for local and non-local features of natural planar shape
Tim Oleskiw, James Elder, Gerick Lee, Andrew Sutter, Anitha Pasupathy, Eero Simoncelli, J. Anthony Movshon, Lynne Kiorpes, Najib Majaj· COSYNE 2023
Planar shape, i.e., the silhouette contour of a solid body, carries rich information important for object recognition, including both local (curvature) and global shape cues. While curvature-selective
Mar 12, 2023
Network dimensions alter reversal learning strategies
Michelangelo Naim, Dan Gibson, Georgios Papageorgiou, Yudi Xie, Mitchell Ostrow, Ann M. Graybiel, Guangyu Robert Yang· COSYNE 2023
How do animals adapt in a dynamic world? Sometimes, our expectations about the world are drastically violated, such as when we accidentally bite into spoiled food. In these circumstances, we must adju
Mar 12, 2023
A population code for spatial representation in the larval zebrafish telencephalon
Chuyu Yang, Lorenz Mammen, Byoungsoo Kim, Drew Robson, Jennifer Li· COSYNE 2023
The vertebrate telencephalon is the site of complex cognitive processes such as spatial cognition. The larval zebrafish telencephalon is a compact circuit of ~10,000 neurons that nevertheless contains
Mar 12, 2023
Multi-object memory and prediction in the primate brain
Nicholas Watters, John Gabel, Joshua Tenenbaum, Mehrdad Jazayeri· COSYNE 2023
Primates excel at reasoning about physical scenes comprised of objects, flexibly generalizing to novel compositions of objects. Many cognitive theories attribute this capacity to structured representa
Mar 12, 2023
A neural model for hierarchical and counterfactual information processing inspired by human behavior
Cheng Tang, Mahdi Ramadan, Mehrdad Jazayeri· COSYNE 2023
The human brain finds solutions to complex multi-stage decision problems that are far more flexible than those learned by artificial systems. Cognitive theories attribute this flexibility to specific
Mar 12, 2023
Predicting the future state of the environment is a crucial task for neural systems, which must compensate for significant delays in both sensation and action. Despite this fundamental importance, we
Mar 12, 2023
Optimizing population codes for distributional representation
Mehrdad Salmasi & Maneesh Sahani· COSYNE 2023
Animals learn to reason and act successfully based on internal estimates of the state of their environment and their relationship to it. Such perceptual estimation is complicated by noise and ambiguit
Mar 12, 2023
A Method for Testing Bayesian Models Using Neural Data
Gabor Lengyel, Sabyasachi Shivkumar, Ralf Haefner· COSYNE 2023
Bayesian models have been successful at accounting for human and animal behavior, yet to what degree they can also explain neural activity is still an open question. While decoding approaches that lin
Mar 12, 2023
Model metamers complement existing benchmarks of biological and artificial neural network alignment
Jenelle Feather & Josh McDermott· COSYNE 2023
The proliferation of deep artificial neural network models has given rise to widespread interest in comparing such models to biological sensory systems. Model metamers – stimuli that produce the same
Mar 12, 2023
Phase remembers: trained RNNs develop phase-locked limit cycles in a working memory task
Matthijs Pals, Jakob Macke, Omri Barak· COSYNE 2023
Neural oscillations are ubiquitously observed in many brain areas. One proposed functional role of these oscillations is that they serve as an internal clock, or ‘frame of reference’ relative to which
Mar 12, 2023
A time-resolved theory of information encoding in recurrent neural networks
Rainer Engelken & Sven Goedeke· COSYNE 2023
Information encoding in neural circuits depends on how well time-varying stimuli are encoded by neural populations. Slow neuronal timescales, noise, and network chaos can compromise reliable and rapid
Mar 12, 2023
The modulation of social decision-making function by dominance status in male mice
Neven Borak & Johannes Kohl· COSYNE 2023
An animal’s dominance status strongly affects its behavioural decision making in social contexts. While the thalamocortical circuitry involved in the establishment of male mouse social status has rece
Mar 12, 2023
Mouse visual cortex as a limited-resource system that self-learns a task-general representation
Aran Nayebi, Nathan Kong, Chengxu Zhuang, Justin Gardner, Anthony Norcia, Daniel Yamins· COSYNE 2023
Studies of the mouse visual system have revealed a variety of visual brain areas in a roughly hierarchical arrangement, together with a multitude of behavioral capacities, ranging from stimulus-reward
Mar 12, 2023
Inter-animal transforms as a guide to model-brain comparison
Javier Sagastuy Brena, Aran Nayebi, Daniel Yamins, Imran Thobani, Rosa Cao· COSYNE 2023
To address the question of how to compare DNN model activations to brain data, we investigate what transforms best describe similarity in neural activity in the same brain area between conspecifics. W
Mar 12, 2023
Motor cortex fine-tunes preparatory activity to cope with uncertainty
Soyoung Chae & Sung-Phil Kim· COSYNE 2023
Voluntary movement is often prepared by motor cortex before its execution. Motor cortical neurons exhibit preparatory-activity, a neural correlate of upcoming movement [1]. Animals adopt different beh
Mar 12, 2023
Hippocampal CA2 modulates its geometry to solve the memory-generalization tradeoff for social memory
Lorenzo Posani, Lara Boyle, Steven A. Siegelbaum, Stefano Fusi· COSYNE 2023
Social memory, one's ability to recognize and remember experiences with other conspecifics, consists of several discrete psychological processes. These include the ability to rapidly detect whether an
Mar 12, 2023
Myelin loss disrupts neural synchrony directing skilled motor behavior in mouse primary motor cortex
Kimberly Gagnon, Gustavo Della Flora Nunes, Dailey Nettles, Ryan Williamson, Daniel Denman, Ethan Hughes, Cristin Welle· COSYNE 2023
Synchronization of neural activity is a fundamental component of information processing in the nervous system. Precise axonal conduction is required for correlated spiking activity between pairs of ne
Mar 12, 2023
Neuronal extraction of statistical patterns embedded in time series
Sandra Nestler, Moritz Helias, Matthieu Gilson· COSYNE 2023
Neuronal systems need to process temporal signals. Here, we hypothesize that temporal (co-)fluctuations – corresponding to high-order statistics beyond the average activity – are relevant for computat
Mar 12, 2023
A normative framework for balancing reward- and information-seeking behaviors in dynamic environments
Nicholas Barendregt, Zachary Kilpatrick, Joshua Gold, Kresimir Josic· COSYNE 2023
Our understanding of how the brain makes decisions has benefited greatly from normative theories that have, for example, established benchmarks for how specific forms of evidence accumulation and deci
Mar 12, 2023
Maintenance of the timing information in olfactory working memory by global activity waves
Xiaoxing Zhang, Ermeng Huang, Huangao Zhu, Da Xu, Zhaoqin Chen, Yulei Chen, Chengyu Li· COSYNE 2023
Working memory (WM) retains information during delay periods. How global neuronal activities maintain WM remains unclear. We recorded brain-wide activity via Neuropixels in mice performing a delay-var
Mar 12, 2023
Functional consequences of highly shared feedforward inhibition in the striatum
Lihao Guo, Pascal Helson, Arvind Kumar· COSYNE 2023
The striatum is crucial for motor control and reinforcement learning. The striatum has only 1% fast-spiking interneurons (FSI) which constitute feedforward inhibition (FFI). Therefore, striatal neuron
Mar 12, 2023
A Hopf-like bifurcation produces depolarization block that expands the peripheral encoding of odors
Philip Wong, David Tadres, Thuc To, Jeff Moehlis, Matthieu Louis· COSYNE 2023
Animals identify odors based on the combinatorial activation of olfactory sensory neurons having distinct chemical receptive fields. However, as the dose response of any olfactory sensory neuron is be
Mar 12, 2023
Exploring a neural circuit for estimating ambient wind direction in flight
Christina May, John Crimaldi, Floris van Breugel, Katherine Nagel· COSYNE 2023
To navigate in a natural environment, a flying fly must estimate and contend with external forces such as wind. Estimating wind direction is difficult because the fly cannot directly sense ambient win
Mar 12, 2023
Orbitofrontal cortex forms representations of latent states during learning
David Barack & C Daniel Salzman· COSYNE 2023
Both humans and monkeys are skillful at learning to form representations of latent states of their environments, those that must be inferred from observations. The neural circuits that govern this sop
Mar 12, 2023
Explainable and consistent embeddings of high-dimensional recordings using auxiliary variables
Steffen Schneider, Jin Hwa Lee, Rodrigo González Laiz, Célia Benquet, Mackenzie Mathis· COSYNE 2023
Mapping behavioral actions to neural activity is a fundamental goal of neuroscience. As our ability to record large neural and behavioral data increases, there is growing interest in modeling neural d
Mar 12, 2023
Multi-modal composition of physiological signals to delineate candidate cell types in-vivo
Chandramouli Chandrasekaran, Anna Lakunina, Santiago Jaramillo, Kenji Lee· COSYNE 2023
Precise identification of in-vivo cell types using electrophysiological signals would allow for the simultaneous monitoring of different cell populations during behavior. Current approaches typically
Mar 12, 2023
Generalization from one exemplar in mice and neurons
Miguel Angel Nuñez Ochoa, Lin Zhong, Fengtong Du, Carsen Stringer, Marius Pachitariu· COSYNE 2023
Learning general principles from single examples is a hallmark of high cognitive functions. This type of learning is computationally challenging for artificial agents, yet many animals such as primate
Mar 12, 2023
Neural Manifolds Underlying Naturalistic Human Movements in Electrocorticography
Zoe Steine-Hanson, Rajesh P. N. Rao, Bing Brunton· COSYNE 2023
An open question in neuroscience is how the brain controls naturally generated movements. An increasing number of studies have shown that high-dimensional neural population dynamics lie within low-dim
Mar 12, 2023
Initial conditions combine with sensory evidence to induce decision-related dynamics in PMd
Pierre Boucher, Tian Wang, Laura Carceroni, Gary Kane, Krishna Shenoy, Chandramouli Chandrasekaran· COSYNE 2023
We employed a dynamical systems perspective to bridge decision-related neural activity and decision-making behavior, a fundamentally unresolved problem. The dynamical systems approach posits that neur
Mar 12, 2023
Granular retrosplenial cortex high frequency oscillation dynamics in hippocampo-cortical dialogue
Kaiser Arndt, Earl Gilbert, Chelsea Buhler, Julia Basso, Daniel English, Lianne Klaver, Sam McKenzie· COSYNE 2023
We used dense (20 m site spacing) local field potential (LFP) and single unit recordings across all layers of the gRSC concurrent with CA1 LFP recordings in behaving mice to investigate circuit activ
Mar 12, 2023
Invertible readouts to improve the dynamical accuracy of neural population models
Christopher Versteeg, Andrew Sedler, Chethan Pandarinath· COSYNE 2023
An emerging perspective in neuroscience connects neural dynamics, or the rules that govern how neural population activity develops over time, to functional computations performed by the brain [1]. Unf
Mar 12, 2023
Learning beyond the synapse: activity-dependent myelination, neural correlations, and information transfer
Jeremie Lefebvre & Afroditi Talidou· COSYNE 2023
Learning relies as much on synaptic weight modifications as it does on the timing of neural signaling. For instance, variability in axonal length and diameter may compromise spike-timing-dependent pla
Mar 12, 2023
Layer-specific control of cortical inhibition by NDNF interneurons
Laura Naumann, Loreen Hertäg, Henning Sprekeler· COSYNE 2023
Accurate perception requires the integration of external (bottom-up) and internally generated (top-down) information. The main recipient of top-down projections in cortex is layer 1, which houses the
Mar 12, 2023
From recency to central tendency biases in working memory: a unifying network model
Vezha Boboeva, Alberto Pezzotta, Athena Akrami, Claudia Clopath· COSYNE 2023
The central tendency bias, or contraction bias, is a phenomenon where the judgment of the magnitude of items held in working memory (WM) is biased towards the average of past observations. It is assum
Mar 12, 2023
Neural population dynamics of computing with synaptic modulations
Stefan Mihalas & Kyle Aitken· COSYNE 2023
In addition to long-time scale rewiring, synapses in the brain are subject to significant modulation that occurs at much shorter time scales and allows them to process short-term information. Despite
Mar 12, 2023
Hebbian learning of a multi-layered cerebellar network with quadratic memory capacity
Naoki Hiratani· COSYNE 2023
A fundamental goal of neuroscience is the functional understanding of neural circuit architecture. Previous studies revealed the importance of network depth in visual and auditory circuits, but it rem
Mar 12, 2023
Fitting normative neural sampling hypothesis models to neuronal response data
Suhas Shrinivasan, Andreas Tolias, Edgar Y. Walker, Fabian Sinz· COSYNE 2023
A prominent theory of sensory perception advocates that perception in the brain is implemented via probabilistic inference. The neural sampling hypothesis (NSH) posits that neuronal responses to a sti
Mar 12, 2023
Individualized representation learning of resting-state fMRI
Kuan Han, Minkyu Choi, Xiaokai Wang, Zhongming Liu· COSYNE 2023
Modest success has been made in using resting state fMRI (rs-fMRI) to predict individualized behaviors. Here, we describe a scalable and modular system for individualized representation learning of rs
Mar 12, 2023
Input-dominated Hebbian learning enables image-computable E-I networks
Samuel Eckmann, Yashar Ahmadian, Máté Lengyel· COSYNE 2023
Recurrent network models of excitatory (E) and inhibitory (I) neurons with supralinear activation functions have successfully explained several cortical computations, including response normalization
Mar 12, 2023
Neuronal circuits for robust online fixed-point detection
Runzhe Yang, David Lipshutz, Tiberiu Tesileanu, Dmitri Chklovskii, Johannes Friedrich· COSYNE 2023
A fundamental problem in systems neuroscience is understanding how the brain learns the non-linear dynamics of the complex world and identifies the environment's state. Data-driven learning in such hi
Mar 12, 2023
Harnessing the flexibility of neural networks to predict meaningful theoretical parameters in a multi-armed bandit task
Yoav Ger, Eliya Nachmani, Lior Wolf, Nitzan Shahar· COSYNE 2023
Classical studies in reinforcement learning (RL) heavily rely on normative models of behavior, models that often stress interpretability over predictive capabilities. More recently, neural network mod
Mar 12, 2023
Hierarchical Modular Structure of the Drosophila Connectome
Alexander Kunin, Xaq Pitkow, Krešimir Josić, Jiahao Guo, Kevin Bassler· COSYNE 2023
The structure of neural circuitry plays a crucial role in brain function. Previous studies of brain organization generally had to trade off between coarse descriptions at a large scale and fine descri
Mar 12, 2023
A normative theory of aggression
Sergey Shuvaev, Evgeny Amelchenko, Grigori Enikolopov, Alexei Koulakov· COSYNE 2023
Aggression, leading to the formation of social hierarchy, has an evolutionary role in reducing conflict and facilitating the allocation of limited resources. Previous studies in mice have identified t
Mar 12, 2023
Inter-animal variability in learning depends on transfer of pre-task experience via the hippocampus
Cristofer Holobetz, Zhuonan Yang, Greer Williams, Shrabasti Jana, David Kastner· COSYNE 2023
Learning occurs in the context of individual prior experience. Variability in learning is, therefore, due to both differences in learning capacity as well as differences in those prior experiences. To
Mar 12, 2023
Experience drives the development of novel and reliable cortical representations from endogenously structured networks
Sigrid Trägenap, David E. Whitney, David Fitzpatrick, Matthias Kaschube· COSYNE 2023
Cortical circuits embody remarkably reliable neural representations of sensory stimuli that are critical for perception and action. The fundamental structure of these network representations is though
Mar 12, 2023
Exactly-solvable statistical physics model of large neuronal populations
Christopher Lynn, Caroline Holmes, Qiwei Yu, Stephanie Palmer, William Bialek· COSYNE 2023
In networks of neurons, fine-scale interactions build upon one another to produce large-scale patterns of activity. But inferring these interactions from state-of-the-art experiments poses a fundament
Mar 12, 2023
Population activity in sensory cortex informs confidence in a perceptual decision
Zoe Boundy-Singer, Corey M Ziemba, Robbe Goris· COSYNE 2023
Observers are aware of the fallibility of perception. When we experience a high degree of confidence in a perceptual interpretation, that interpretation is more likely to be correct than when we feel
Mar 12, 2023