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Articles by Doris Tsao
Rapid concerted switching of the neural code in the inferotemporal cortex
Abstract A fundamental paradigm in neuroscience is that neurons represent the world through fixed tuning functions, with stable mappings from stimulus features to firing rates1. Here, we report that tuning can instead shift rapidly and coherently across a neural population, enabling a dynamic transition from detecting a broad category to discriminating individual exemplars.
Doris Tsao
Doris Tsao is professor of neurobiology and molecular and cell biology at the University of California, Berkeley’s Helen Wills Neuroscience Institute. She studies visual perception in primates to understand how the brain creates our sense of reality. She is widely recognized for her work on the neural system for face processing within the temporal lobe, clarifying its anatomical organization and coding principles.
Science must break its silence to rebuild public trust - Nature Neuroscience
This Comment calls on scientists to acknowledge how insufficient communication and limited engagement beyond academia have deepened the divide between science and the public. Restoring trust requires a paradigm shift in which scientists accept that the responsibility to champion science lies with us.
A circuit that integrates drive state and social contact to gate mating - Nature
Abstract Internal motive states, such as sexual arousal, drive behaviour in response to social cues. However, little is known about how internal states and external cues are integrated to release appropriate behaviours at the correct moment during a social interaction, such as the transition from the appetitive to the consummatory phases of mating1,2. Here we identify a neural circuit in male mice that gates the onset of consummatory reproductive behaviours on contact with a mating partner.
Large-scale high-density brain-wide neural recording in nonhuman primates - Nature Neuroscience
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Abstract High-density silicon probes have transformed neuroscience by enabling large-scale neural recordings at single-cell resolution. However, existing technologies have provided limited functionality in nonhuman primates (NHPs) such as macaques. In the present report, we describe the design, fabrication and performance of Neuropixels 1.0 NHP, a high-channel electrode array designed to enable large-scale acute recording throughout large animal brains.
By Eric M. Trautmann, Shude Zhu, Daniel J. O’Shea, Bill Karsh, Jennifer Colonell, Saurabh Vyas, Elom A. Amematsro, Daniel A Wagenaar, Marius Pachitariu, Carolina Mora Lopez, Carolina López, John O’Callaghan, Bogdan Raducanu, Marleen Welkenhuysen, Mark M. Churchland, Tirin Moore, Doris Tsao, Barundeb Dutta, Jan Putzeys
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Nature
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The BRAIN initiative: a pioneering program on the precipice - Nature Neuroscience
Launched in 2013, the BRAIN Initiative (BRAIN) in the United States aimed to unlock the mysteries of the brain and develop new treatments for neurological and neuropsychiatric disorders. The success of this program is evidenced by the accelerated discoveries and development of interventions that are happening in real time.
The Individual In Contemporary Society
I’m on the road, it’s been raining in Paris, time for something new. I’ve been posting here for a long time, this is number 334, and almost all of them have been about some aspect of our national life. Lately I’ve been thinking about what it means to be an individual person in contemporary US society. Vignettes Should we define ourselves in terms of our work lives? 1. Neoliberals talk about homo economicus.
Critical Brain Research Faces a Massive Funding Shortfall – DC Journal - InsideSources
Last year, a paralyzed patient unable to talk used her brain waves to speak sentences. This astonishing feat, straight out of science fiction, was made possible by funding from the National Institutes of Health’s BRAIN (Brain Research Through Advancing Innovative Neurotechnologies) Initiative. Yet, in a stunningly shortsighted move, Congress has slashed funding for this program by a staggering 40 percent for fiscal year 2024.
Functional modules for visual scene segmentation in macaque visual cortex | Proceedings of the National Academy of Sciences
Significance Segmentation of a visual scene is one of the most important steps in visual processing as it allows one to distinguish between regions of the scene that belong to different visual objects. Previous studies reported cells encoding different aspects of segmentation in random locations of visual areas, but a systematic characterization of segmentation tuning properties across visual areas is missing.
The macaque face patch system: a turtle’s underbelly for the brain
Abstract Objects constitute the fundamental currency of our consciousness: they are the things that we perceive, remember and think about. One of the most important objects for a primate is a face. Research on the macaque face patch system in recent years has given us a remarkable window into the detailed processes underlying object recognition.
A map of object space in primate inferotemporal cortex
Abstract The inferotemporal (IT) cortex is responsible for object recognition, but it is unclear how the representation of visual objects is organized in this part of the brain. Areas that are selective for categories such as faces, bodies, and scenes have been found1,2,3,4,5, but large parts of IT cortex lack any known specialization, raising the question of what general principle governs IT organization.
How the Brain Reads Faces
Brain regions that process faces reveal deep insights into the neural mechanisms of vision When I was in high school, I learned one day about the density of curves in an introductory course on calculus. A simple pair of differential equations, which model the interactions of predators and prey, can give rise to an infinite number of closed curves—picture concentric circles, one nested within another, like a bull’s-eye. What is more, the density of these curves varies depending on their location.
Scientific American Volume 320, Issue 2
Current Issue Scientific American Volume 320, Issue 2 Purchase To Read More Select Format Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $6.99 Digital Issue + Subscription ?Read or download this issue’s articles online. Plus, subscribe to get Online and Tablet access to the next 12 new issues to be released as well as Online access to up to the past 4 years of archives. *A printed copy of this issue is not included.
Ultrasonic Neuromodulation Causes Widespread Cortical Activation via an Indirect Auditory Mechanism
Ultrasound has received widespread attention as an emerging technology for targeted, non-invasive neuromodulation based on its ability to evoke electrophysiological and motor responses in animals. However, little is known about the spatiotemporal pattern of ultrasound-induced brain activity that could drive these responses. Here, we address this question by combining focused ultrasound with wide-field optical imaging of calcium signals in transgenic mice.
The Code for Facial Identity in the Primate Brain
Face Patches ML/MF and AM Carry Complementary Information about Facial Features Shape of Tuning along Axes Orthogonal to the STA The Axis Coding Model Is Tolerant to View Changes Computational Advantages of an Axis Metric over a Distance Metric Statistical significance of tuning along a single axis in the face space Computation of neuronal tuning along axis orthogonal to STA Online generation of facial images based on the responses of face cells The model used for decoding assumes that face...
Anatomical Connections of the Functionally Defined “Face Patches” in the Macaque Monkey
Figure 1Distribution of Retrogradely Labeled Cells in the Temporal Lobe after CTB-555 Injection into Left PL (Case Monkey D)(A) Lateral view of the left hemisphere indicating the trajectory of the electrode (and injection cannula) into PL, located above the posterior middle temporal sulcus (pmts).(B and C) Trajectory of the actual electrode in this face patch in coronal and sagittal-like MR images.(D) Baseline-subtracted, normalized responses of 14 cells along one penetration (spaced 100 μm...
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