Version 5 is a truly significant expansion of functionality over the previous version. Version 5 adds several new analyses (Hilbert transform, head direction analysis and others), multi-taper spectral calculations, statistical tests (t-tests, ANOVA) and immediate data preview. The new version is also faster and can handle multi-gigabyte data files.

Here is the list of the main improvements implemented in version 5 of NeuroExplorer.

When NeuroExplorer version 5 loads a data file, it shows a preview of all data channels:

NeuroExplorer version 5 provides vastly improved spectral analyses of spike trains and continuous channels:

• Single-taper and multi-taper calculations of spectra
• 6 windowing functions
• 3 preprocessing options
• Jackknife confidence
• Ability to replicate Matlab spectral calculations
• Up to 10 times faster calculation of spectral results

Several new analyses of continuous data (LFP) are available:

• Perievent rasters for continuous

• Power spectra for continuous
• Coherence for continuous
• Single trial spectrum analysis
• Single trial phase analysis using Hilbert transform
• There is a new ‘Analyses of Continuous Data’ analysis group that lists all the analyses that can be
  used with continuous channels:

 

Digital filtering options for continuous data are expanded and now include both IIR and FIR filters.
FIR filters can be used when a band-pass filter with a narrow frequency range is required.

• 3 new IIR filters
• 3 new FIR filters
• Power spectra for continuous
• Coherence for continuous
• Single trial spectrum analysis
• Single trial phase analysis using Hilbert transform

There are also improvements in spike train analyses:

• Multi-taper options in spike train spectral analyses
• Firing rate versus head direction analysis

New statistical tests to compare results across conditions can be run directly in NeuroExplorer:

• Implemented via integration with freely available R-project
• ANOVA test across multiple conditions
• T-test test across two conditions
• Wilcoxon test test across two conditions

New version is available as a 64-bit Windows executable. This removes previous memory limitations
(all the available RAM can now be utilized by the program). The new version is also faster: computationally demanding analyses are run in parallel using all CPU cores.

NeuroExplorer Version 5 supports new .nex5 data file format (currently in development) that is more flexible than .nex file format:

• Allows to save files of more than 2 GB in size
• Allows to save unlimited metadata for the whole file and for every file variable in JSON format

The new version has the ability to save and restore results:

• Saves all numerical and graphical results in a series of linked files
• A user can open results files without recalculation and access both graphical and numerical results
• A user can recalculate analysis results with a single mouse click

National language support is also implemented in the new version:

• NeuroExplorer Version 5 correctly displays folder and file names in any language supported by Windows
• A user can use any language to name files and variables in files
• A user can also use any language to enter comments in data files and scripts

See also: Waveform analysis in NeuroExplorer, Working with Results Files, Dealing with Noise and Artifacts in Data Viewer, New Phase Analysis, Python Scripting in NeuroExplorer