default Neurophysiological data collected at the Nets3 Laboratory, Istituto Italiano di Tecnologia (IIT), Genoa - Italy Popular

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These data were published in:

Nieus T., Di Marco S., Maccione A., Amin H. and Berdondini L., Investigating cell culture dynamics combining high density recordings with dimensional reduction techniques, 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2015

Any person downloading these accepts to acknowledge this study by citing it in every publication or report arising from the use of these data. 
Data description:
The data consist of the spiking activity of hippocampal cell cultures recorded with the high density 4096 electrodes MEA device. Each folder consists of a series of files referring to the same experiment.
The following protocol was repeated for each experiment (folder)
    1. control: spontaneous activity is recorded
    2. control: stimulation is delivered with protocol 1 or 2 and activity is recorded
    3. control: spontaneous activity is recorded
    4. norepinephrine: spontaneous activity is recorded under norepinephrine
    5. norepinephrine:  stimulation is delivered with protocol 1 or 2 and activity is recorded
    6. norepinephrine:  spontaneous activity is recorded
In each folder, the file order reflects the phases of the outlined experimental protocol (e.g. in experiment BW331, step 1 corresponds to file Phase_03_basal_SpkTs.mat etc...). Refer to the Excel file "Table of Experiments.xlsx" for further details.
File format:
Each file contains a matrix made two rows and N columns (N is the number of spikes). The second row corresponds to the time stamps of the spiking activity and the first one to the corresponding electrode ID (numbered from 1 - top left of the recording matrix - to 4096 - bottom right of the recording matrix). Each stimulation phase (i.e. 2.,4.) consist of two mat files: one with the standard 2xN matrix (filename.mat) and the other with the time artifacts (filename_tart.mat).
Stimulation protocol:
In all experiments, 8 of the available 16 stimulation electrodes were used (numbered 1 to 16 with the same top left to bottom right convention). A pseudorandom stimulation sequence was implemented according to protocols 1 and 2.
    protocol 1 (used for BW208, BW212, BW214):
        stimulation electrodes {2,4,5,7,10,12,13,15} are activated repeating the sequence 
        [10,2,15,5,13,7,12,4,15,7,10,13,2,4,5,12] 16 times ( yielding a total of 32 repetitions per stimulus)
    protocol 2 (used for BW331, BW332):
        stimulation electrodes {1,3,6,8,9,11,14,16} are activated repeating the sequence
        [1,11,16,14,3,9,8,6,14,3,6,1,11,9, 8,16,6,11,14,9,8,16,1,3,14,8,6,1,11,9,3,16] 30 times
        (yielding a total of 60 repetitions per stimulus)
Contributors:
Thierry Nieus (IIT)
Alessandro Maccione (IIT)
Hayder Amin (IIT)
Stefano Di Marco (IIT)
Luca Berdondini (IIT)

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FP7-70pxeu-flag-70pxfet-70pxThe project SI-CODE acknowledges the financial support of the Future and Emerging Technologies (FET) programme within the Seventh Framework Programme for Research of the European Commission, under FET-Open grant number: FP7-284553