A couple of weeks ago, someone asked whether there was a convenient way 
to edit spurious spikes out of an event data file.  Since I have the 
same problem, I decided to write a simple little program for editing 
PSNTYPE4 event data files.  The program prompts for the start and end 
times of the segment you want to edit and replaces the offending data 
samples with zeros.  Not very fancy, but it works.  If anyone would like 
a copy of the tool and/or the source code, I would be happy to send it 
to you.

Larry Conklin
Liverpool, NY
lconklin@............
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