51 lines
2.2 KiB
Plaintext
51 lines
2.2 KiB
Plaintext
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These cells are from layers II and III of medial entorhinal cortex and have been published in Hafting et al. (Nature, 2008).
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The files are in matlab format. They include spike and position times for a number of simultaneously recorded cells from rats that were running on a linear track (mostly 320 cm).
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The cells were recorded in the dorsocaudal 25% portion of the medial entorhinal cortex.
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The cell id is based on tetrode number and cell number (i.e: t2c7).
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The EEG file is included to enable analyses of theta phase relationships etc.
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There are 3 file types available for each recording: EEG data, Position data and Spike data.
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The naming convention for the files is as follow
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Rat number - session number - file type (i.e: 11015-13120410_EEG)
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The spike data file has the cell id as the file type (i.e: 11015-13120410_t5c1).
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Each session duration is normally 10 minutes, but some sessions combine 2 or more 10 minutes sessions, this is marked in
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the file name by using "+" between the session numbers (i.e: 11265-13030610+11+12+13_POS). Note that the 6 first digits in the session
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number is the date of the recording. For some sessions there is more than 1 local EEG-signal (each from a different tetrode).
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When loading the files into Matlab you get the following variables:
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posx Array with the x-positions for the tracking LED
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posy Array with the y-positions for the tracking LED
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post Array with the position timestamps.
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ts Array with the cell spike timestamps.
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EEG Array with the EEG-samples.
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The position data have been smoothed with a moving mean filter to remove tracking jitter.
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The EEG is sampled at 250 Hz, and the values are given in bits ranging from -128 to 127.
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High resolution EEG sampled at 4800hz included in subfolder
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All examples are shown in Supplementary Figures 2 and 3 in Hafting et al (2008).
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You can use the data for whatever you want but we take no responsibility for what is published!
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Please refer to our web site where you obtained the data in your Methods section when you write up the results.
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Best regards,
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Raymond Skjerpeng and Edvard Moser
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Kavli Institute for Systems Neuroscience
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Centre for the Biology of Memory
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Norwegian University of Science and Technology
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Correspondence: Edvard Moser (edvard.moser@ntnu.no)
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