evo视讯(中国)

    In vivo Ephys: Analysis Protocol

    Sasha Burwell

    Published: 2024-04-16 DOI: 10.17504/protocols.io.261ge5o2yg47/v1
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    Abstract

    This protocol details the analysis procedures performed on the in vivo electrophysiology data post-spike sorting.

    Steps

    Analysis Protocol

    1.

    To plot the waveforms from one electrode of interest in the raw data (ex, Fig. 1c), run the Matlab code

    plotRawTraces(electrode)
    ``` on the raw continuous data.
    
    
    2.

    To analyze the sorted templates extracted from Spyking Circus,

    2.1.

    Use the custom matlab code.

    plotSpikes(chWithCell)
    
    2.2.

    chWithCell = array of the electrode which has a cell for each template (ex [5 15 3]).

    Note
    Make sure this is in the order of the templates output by Spyking Circus.

    2.3.

    Calculates and plots spike amplitude, cumulative spikes, and firing rate in Hz for all the templates saved.

    3.

    From the resulting Templates_data structure, save each row as an individual dat variable.

    i.e., for ch 15 in the above example:

    load Templates_data;
    dat = Templates_data(2, :); %row 2 is channel 15 data
    save(‘mouse_date_ch15_data’, ‘dat’);
    
    4.

    Copy multiple channels into one folder for grouped analysis, and run

    spikingAcrossCells
    ``` in this folder.
    
    
    5.

    Referencing the control and experimental

    allCells
    ``` data structures created from 
    
    

    spikingAcrossCells

    plotFeaturesAcrossTime

    6.

    Use the features in the

    allCells
    ``` data structure:
    
    
    6.1.

    Calculate delta norm as (post-pre)/(post+pre) for each feature for each cell.

    6.2.

    Input ddHTP values as

    y1
    ``` and +HTP values as 
    
    

    y2

    
    
    
    

    TwoGroupsMeanDiff

    6.3.

    Use GraphPad Prism to generate the plots in Ext. Fig 2d and h-l from the delta norm features.

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