Features

Powerful Waveform Viewing and Sorting

• Manual cluster selection in 3D feature space using principal component projections, voltage slices in time, or more than 20 other waveform features such as peak, valley, full-width at half maximum, etc.
• Box sorting (like in the Sort Client on-line MAP control software)
• Waveform selection in time-voltage space
• Template matching algorithm
• Tetrode and Stereotrode waveform extraction and sorting using any method
• Unit cross-correlograms and ISI plots
• Waveform density plots in 2D or 3D in any feature space
• Waveform alignment
• Interval invalidation and artifact removal
• Raster displays of spikes and continuous data
• Printable sorting summary view with export to PowerPoint®
• Sort summary statistics
• Waveform features and statistics that can be easily exported to MATLAB®, Excel® or text file
• Export of sorted data to Neuroexplorer™ or optimized binary format (for fast loading)
• Save and recall particular sorting instances for a selected channel (useful for comparisons)

Time segmentation, adaptive sorting methods, and time-dependent analysis

• Divide each file into time segments and view and sort waveforms from each time segment separately
• Clusters vs. Time view to show how clusters evolve as a function of time
• Sort Quality vs. Time Segment graph to display how the sort quality changes through the file
• Adaptive template sorting, with the templates changing over time to follow the waveform as it evolves
• Template vs. Time view to display how the template adapted through the file

Semi-Automatic and Automatic Sorting

• Enhanced automatic sorting methods with systematic scanning through parameter space and graphs displaying the sort quality metric as a function of the parameters that were varied; select the best sorting according to a selected sort quality metric
• Automatic sort scan results for each channel can be saved to and loaded from .SCAN files. This, together with the new batch mode scan commands, will allow the running of certain sorting scans overnight, followed by manual reviewing and selection of the most appropriate sort for each channel
• Automatic cluster selection in feature space using valley seeking or T-Distribution E-M
• Semi-automatic cluster selection in feature space using K-means or Standard E-M (Expectation Maximization)

Enhanced Batch Mode Processing for Running Sorting Algorithms Overnight

• New batch mode commands for scanning through automatic sorting parameters
• New menu item to edit batch files with a user-selected editor
• Memory of previous batch file locations
• New Quick Batch Reference showing all batch commands
• New menu item showing the log file resulting from the latest batch run

Enhanced Continuous Data Handling and Spike Detection

• Up-sampling of continuous signals, with linear or spline interpolation
• FFT view of continuous data
• Single and Dual Thresholds for spike detection
• Waveform detection and extraction now appropriately handles differences in voltage scales between spike waveform segments and continuous spike data

Improved User Interface, Displays, and Performance

• Enhanced bottom Timeline View showing both continuous and waveform data simultaneously with a resizable splitter
• Mouse-over time and voltage readings in the waveform and continuous data views
• More information related to gains and voltage ranges in the Channel Parameters and File Summary views
• New Select main menu item to select the next/previous channel, unit, waveform, or time segment
• Performance enhancements for faster loading data files
• Now available as a true 64-bit executable – for faster processing of large data files