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Overview of data files

A promoted (i.e. pre-processed, annotated, and approved) data folder consists of most of the following files:

  • *.Ncs files: continuously sampled data, “local field potentials”
  • *.ntt files: raw tetrode files, you will generally not need to load these
  • *.Nev file: raw Events file
  • *.Nvt file: video tracking file (usually zipped)

The above are raw data files stored by Neuralynx. The following files are the result of preprocessing and annotation:

  • *.t files: spike times for one putative neuron (output from MClust)
  • *.clusters: cluster information (output from MClust, you will generally not need this)
  • *wv.mat and *ClusterQual.mat files: waveforms and cluster quality metrics
  • *Metadata.mat file: structured task-related information such as locations of feeders, times of rewards, etc.
  • *ExpKeys.m file: basic information about this recording session, such as task, start time, end time, etc. (note this is a .m file, so needs to be run rather than loaded as you would a .mat file)

Note the naming convention for the above files: all files are identified by the RYYYY-MM-DD string in the filename, and recording files are further named with the tetrode number.

Basic data loading

Description of the Multiple-T task



This is example of a Metadata struct, taken from session ZXXX

>> Metadata
Metadata = 
         Feeders: {[1x1 struct]  [1x1 struct]  [1x1 struct]  [1x1 struct]}
          Events: {[1x1 struct]  [1x1 struct]  [1x1 struct]}
     TimeOnTrack: 627.5610
    TimeOffTrack: 3.0261e+03
      SwitchTime: 1.7264e+03
        goodFood: 'y'
         Markers: [1x1 struct]
         Linpath: [1x1 struct]
analysis/adrlab.1372863200.txt.gz · Last modified: 2018/07/07 10:19 (external edit)