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About ac-1

Information about the data.

Summary of the data.

The data consists of electrophysiology data recorded by Michael Wehr (from 2002 to 2003) and Hiroki Asari (from 2005 to 2007) at Anthony Zador lab at Cold Spring Harbor Laboratory.  Neuronal responses to various natural and synthetic sounds were recorded using whole-cell and cell-attached recording techniques in the primary auditory cortex (area A1) and auditory thalamus (medial geniculate body; MGB) in the anesthetized rat.   For details, please see the lab web site.

The main analysis results from these data are shown in:

C. K. Machens, M. S. Wehr, and A. M. Zador (2004) "Linearity of Cortical Receptive Fields Measured with Natural Sounds." J Neurosci, 24(5):1089-1100.
H. Asari and A. M. Zador (2009) "Long-lasting context dependence constrains neural encoding models in rodent auditory cortex." J Neurophysiol. 102(5):2638-56.

Format of the data.

The data is organized into two top level folders, one containing Wehr's stimuli and responses, the other containing Asari's.  Hiroki Asari standardized the data formats (for stimuli and responses) in MATLAB (R14 or later: Mathworks, Natick, MA).  The total data size is about 4.1 GB (1.1 GB for Wehr's data, 3.0 GB for Asari's).

How to download the data

Data may be downloaded from:
A account is required. See the download link for more instructions.

Getting help using the data.

If you have questions about using the data, post them on the forum for using data sets.  It is also possible to email questions to the data contributors.  Instructions for doing this are included with the download.  However, posting questions to the forum is preferable because then everyone can see the answers.

How to cite the data

Publications created through usage of the data should cite the data set in the following recommended format:

Asari, Hiroki; Wehr, Michael; Machens, Christian K.; Zador, Anthony M. (2009): Auditory cortex and thalamic neuronal responses to various natural and synthetic sounds.

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

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