About Peter Petersen

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So far Peter Petersen has created 21 blog entries.

Metal microdrive and head cap system for silicon probe recovery in freely moving rodent

2021-05-21T09:36:32-04:00May 21st, 2021|

Metal microdrive and head cap system for silicon probe recovery in freely moving rodent High-yield electrophysiological extracellular recording in freely moving rodents provides a unique window into the temporal dynamics of neural circuits. Recording from unrestrained animals is critical to investigate brain activity during natural behaviors. The use and implantation of high-channel-count silicon probes represent the largest cost and experimental complexity associated with such recordings making a recoverable and reusable system desirable. [...]

Public access to electrophysiological datasets collected in our lab

2021-01-06T10:11:33-05:00January 6th, 2021|

The Buzsaki Lab is proud to present a large selection of experimental data available for public access. We publicly share more than a thousand sessions (about 40TB of raw and spike- and LFP-processed data) via our public data repository. The datasets are from freely moving rodents and include sleep-task-sleep sessions (3 to 24 hrs continuous recording sessions) in various brain structures, including metadata. We are happy to assist you to use this data. Our goal [...]

CellExplorer: a framework for analyzing single-cells

2021-01-06T10:09:04-05:00January 6th, 2021|

CellExplorer is a graphical user interface (GUI), standardized pipeline, and data structure for exploring and classifying spike sorted single units acquired using extracellular electrodes. The large diversity of cell types of the brain provides the means by which circuits perform complex operations. Understanding such diversity is one of the key challenges of modern neuroscience. These cells have many unique electrophysiological and behavioral features from which parallel cell type classification can be inferred. CellExplorer is [...]

The brain is like a choir singing in an old church

2020-11-26T22:09:57-05:00November 26th, 2020|

The brain is like a choir singing in an old church Svenska Dagbladet (The Swedish Daily News) published a kind review about The Brain from Inside Out. Below is the Google translation. Here is the original article in Swedish (behind paywall). And here is a PDF file of the full article in Swedish. From being perceived as a theater where the soul sits and interprets our senses, the brain has in recent years [...]

Transformation of a Spatial Map across the Hippocampal-Lateral Septal Circuit

2018-07-10T14:09:35-04:00July 10th, 2018|

The hippocampus constructs a map of the environment. How this “cognitive map” is utilized by other brain regions to guide behavior remains unexplored. To examine how neuronal firing patterns in the hippocampus are transmitted and transformed, we recorded neurons in its principal subcortical target, the lateral septum (LS). We observed that LS neurons carry reliable spatial information in the phase of action potentials, relative to hippocampal theta oscillations, while the firing rates of LS neurons remained uninformative. Furthermore, [...]