Circuit Diagrams

Abstract Advances in non-invasive monitoring of human brain function under normal and pathological conditions will lead to breakthroughs in our understanding of the brain in health and disease, and lead to the development of devices available for everyday use, with applications such as monitoring patients with brain injuries or neurodegenerative disease, studies of brain function in natural environments, and brain-computer interfaces.

Project Summary Single cell transcriptomics has transformed the field of brain cell type classification, allowing simultaneous measurement of enough molecular features from enough cells to categorize neurons quantitively and with high conservation across brain areas and species.

Abstract: In this proposed research project, we seek to develop an advanced brain SPECT system that offers a unique hyperspectral imaging capability substantiated by an excellent energy resolution (e.g.,

SUMMARY The "NexGen" 7 Tesla MRI scanner at UC Berkeley is a unique resource that we wish to make available for neuroscience collaborations across the globe. It was specifically designed for extremely high resolution structural and functional neuroimaging at the scale of cortical laminae and columnar neurocircuit organization ("meso-scale"). To achieve this, the NexGen scanner builds upon existing standard 7T scanners and integrates a number of technological advances, creating synergistic improvements and gains in speed, resolution and signal.

Project Summary/Abstract Neural representations supporting spatial and episodic learning form, and transform rapidly in the mammalian hippocampus. Individual hippocampal pyramidal cells each fire at a specific location in an environment and together these place cells provide a striking substrate for a cognitive map. A critical step in achieving a mechanistic understanding of how place cell dynamics support hippocampal learning and memory is to be able to re-create endogenous neuronal representations experimentally, and test their behavioral relevance.

HNN U24 DISSEMINATION PROJECT SUMMARY The Human Neocortical Neurosolver (HNN) neural modeling tool was developed with BRAIN Initiative funding (R01EB022889: 09/2016–06/2020) to meet the Initiative’s goal to “develop innovative technologies to understand brain circuits and ensembles of circuits that infor

PROJECT SUMMARY The insular cortex (IC) is a multimodal hub that integrates interoceptive and exteroceptive information to control diverse aspects of animal behaviors related to cognition, emotion, and motivation. Among other functions, the IC receives information regarding an animal’s metabolic states and drives motivation and valence-specific behaviors. However, our understanding of the neuronal substrates and circuit principles underlying IC function is still in its infancy.

Cortical assembly formation through excitatory/inhibitory circuit plasticity. Project Summary Throughout the brain, sensory information is thought to be represented by the joint activity of neurons that form functionally connected assemblies. A long-standing premise is that assemblies are formed during sensory learn- ing by strengthening the excitatory connections between co-active neurons. However, the role of inhibition in this process has yet to be fully elucidated.

Project Summary. We propose a new coil array that will enable next-generation causal brain mapping with unprecedented flexibility, resolution and precision. The proposed ARES2 hybrid array generates E-fields in the cortex for transcranial mag- netic stimulation (TMS) as well as B-fields for spatial and diffusion encoding applications including high-resolu- tion, high b-value diffusion MRI and fMRI.

Project Summary / Abstract Although BRAIN 2.0 called for the BRAIN Initiative to “prioritize diversity and inclusion as a fundamental pillar,” research with the human neuroimaging technologies being developed by BRAIN Initiative continues to rely on non-representative convenience samples.