Whats New?

What's New in LTP230D?

Changes from LTP222A to LTP230D (Jan, 2002)

Implementation of CIO-DAS08/JR-AO - an inexpensive, multichannel data acquisition board for the ISA bus (from Measurement Computing)

Capabilities used by LTP230D include: 2 AD channels and 2 DA channels (CIO-DAS08/JR-AO board only)

Low Cost: $200/�180 including AD chip (CIO-DAS08/JR-A0); $150/�140 without AD chip (CIO-DAS08/JR)

Software calibration: AD offset and gain adjust; DA offset and gain adjust


	Software calibration for Pico Technology's ADC-42 board

AD offset and gain adjust


	Improved interaction with other data acquisition and analysis programs

		Reanalysis of ASCII ADsweep files (with or without a header)
		Save reanalyzed ASCII sweep files (useful for saving averaged, blanked and/or filtered sweeps)
		atf2swps.exe - Convert an Axon Text File (*.ATF) to many single sweep ASCII files for importing into LTP230D
		dv2swps.exe - Convert a multisweep DataView ASCII text file to many single sweep ASCII files for importing into LTP230D


	Improved Stimulus Artifact Blanking: adding Slope blanking and Hold blanking to the Average blanking method

Changes from LTP114J to LTP222A (May, 2001)

2 AD channel acquisition

Analyze all S0- and S1-evoked postsynaptic responses in both AD channels in a sweep

Special analyses of trains

		1.	Analyze every pulse in train, but use the baseline of the first pulse as the baseline for each pulse
		2.	Analyze whole train by analyzing only first pulse in train but detecting whole train
		3.	Analyze train using baseline of the first pulse and response of the last pulse


	Automatic blanking of stimulus artifacts to allow accurate determination of peaks and areas in a train

	(Icon startup from Windows 98 desktop - has been removed in LTP230D)

	Automatic data folder creation at startup when in acquisition mode
	AutoCreate a new data Folder (using CTL-F) while running an experiment
	Change data folder during acquisition or reanalysis
	Reanalyze files from a CD-ROM

	Off-line signal averaging
	On-line digital filtering while averaging sweeps

Minor enhancements

		1.	Train ViewPg is gone, and now the latest Pulse ADsweep or Train ADsweep are plotted on the same page
		2.	Change screen colors (Now you can have graphs with white background color)

If you are upgrading from earlier versions of the LTP program, you will have write new *.pro protocol files. However, you can analyze the same ADsweep files with LTP114J that were obtained with all earlier versions of the LTP program.

If you have only 8MB of memory in your computer you have to upgrade to at least 16 MB (up to 64 MB can be used by the LTP Program).

Changes from LTP113E to LTP114J (Oct, 1999)

LTP113E has a Year 2000 bug which does not allow it to save data after Dec 31, 1999. This has been fixed in LTP114J.

Changes from LTP101M (Dec, 1997) to LTP113E (Sept, 1998)

Upgrading from LTP101M is a modest upgrade that primarily fixes to quite a few bugs most of which deal with LTP's stimulation capabilities.

In addition, it contains a few more waveform analysis capabilities

		1.	PopSpike Amplitude
		2.	PopSpike Latency (time from stimulus to pop-spike peak)
		3.	Duration
		4.	Area
		5.	10-90% Rise Time
		6.	10-90% Decay Time
		7.	Coastline (for epilepsy studies)
		8.	Peak Latency (time from stimulus to peak amplitude)

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Last updated Jan 24, 2002 by Bill Anderson.