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You are here: Home Data Sets Somatosensory cortex ssc-9 (Somatosensory cortex 9) About ssc-9

About ssc-9

Information about the data including data types, experiments, format of the data, how to download the data.

Summary of the data

The data set consists of acute extracellular recordings in primary whisker somatosensory cortex (S1) of awake and anesthetized mice during passive whisker stimulation, delivered with a 3x3 array of piezoelectric actuators. The recording electrode was placed in the cortical column corresponding to the whisker in the center of the array; thus, the stimulated whiskers were the columnar whisker (CW) of the column being recorded and 8 surrounding whiskers (SWs). Neural activity is described by the spike times of isolated single units obtained from spike sorting. We performed 3 experiments with different stimulus sets and behavioral conditions. Experiment 1 was performed in anesthetized mice and consisted of 261 unique stimuli; 9 single-whisker deflections and 252 2-whisker sequences (that is, 9 choose 2 spatial combinations, each of which was delivered at 7 inter-whisker-deflection-intervals (Δt’s): 0, ±10, ±25 and ± 50ms) (see Fig. 1a of paper). Experiment 2 was also in anesthetized mice and had a total of 3000 unique stimuli; 18 single-whisker deflections (9 whiskers with peak deflection amplitude in either the rostral or caudal direction), 1600 CW-SW sequences (8 correlated and 8 anti-correlated CW-SW combinations at 100 Δt’s within ± 50 ms range) and 1400 SW-SW sequences (7 correlated and 7 anti-correlated SW-SW combinations at 100 Δt’s within ± 50 ms range). Only SW-SW combinations that involved the SW located rostral and within the same row as the CW were presented. Experiment 3 was done in awake mice performing a simple visual detection task where mice licked in response to a flash of blue light — this allowed us to deliver calibrated whisker deflections in awake mice. The stimulus set consisted of 9 single-whisker deflections and all correlated CW-SW and SW-SW combinations at an inter-whisker-deflection-interval of -40, 0 and +40 ms. These data are the basis for the following paper, which contains a detailed description of the methods and results:

Laboy-Juárez KJ, Langberg T, Ahn S & Feldman DE. (2019) Elementary motion sequence detectors in whisker somatosensory cortex. (in press — Nature Neuroscience)

Format of the data

The data is stored in matlab mat files. Details about the data are in the document linked to at the end of this page. Total data size is about 192 MB (compressed).

Conditions for usage of this data in publications

If you publish any work using the data, please cite the publication above (Laboy-Juárez et al., 2019) also cite the data using the following:

Keven J. Laboy-Juárez, Tomer Langberg, Seoiyoung Ahn, Daniel E. Feldman (2019); Extracellular recordings in mouse barrel cortex during single- and 2-whisker stimulation. CRCNS.org.
https://dx.doi.org/10.6080/K0FJ2F13

The above citation uses a Digital Object Identifier (DOI) which is assigned to the data set.  The DOI was created using DataCite (www.datacite.org) and the California Digital Library, "EZID" system (ezid.cdlib.org).

How to download the data

Data may be downloaded from:
https://portal.nersc.gov/project/crcns/download/ssc-9
A CRCNS.org account is required. See the download link for more instructions.

Getting help using the data

If you have questions about using the data, please post them on the forum for using data sets.

Documentation files

crcns_ssc-9_data_description.pdf

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