Search found 10 matches

by juank
Thu Nov 16, 2023 5:22 pm
Forum: EEG data analysis
Topic: Mapping 128 to 64 channels headcap
Replies: 0
Views: 4295

Mapping 128 to 64 channels headcap

Hi, I am working on a multi-centre dataset and I need to match data recorded with 128 and with 64 channels. I don't want to reinvent the wheel... Do you know some tool to do this (preferably in Python/MNE)? Or should I interpolate all the 64 channels one by one with the original 128 channels? By the...
by juank
Fri Jun 06, 2014 5:39 pm
Forum: BioSemi Hardware
Topic: battery datasheet
Replies: 1
Views: 5961

battery datasheet

Hi, I looked for information of the battery in the webpage and it said "The battery-box contains a sealed lead-acid battery and a shutdown circuit to prevent the battery from deep discharge. ". But, because of issues of the import regulations, I need a proper datasheet of the battery. Is that possib...
by juank
Mon Feb 24, 2014 1:59 pm
Forum: BioSemi Software (ActiView executable)
Topic: Two EEGs plus AIB
Replies: 2
Views: 11524

Re: Two EEGs plus AIB

Thanks a lot! I'll try that!
by juank
Mon Feb 24, 2014 1:29 pm
Forum: BioSemi Software (ActiView executable)
Topic: Two EEGs plus AIB
Replies: 2
Views: 11524

Two EEGs plus AIB

Hi,

I wanted to connect two EEG in daisy chain (I already did it in previous experiments) and the AIB. Can I do this? Which SPEEDMODE I have to use?

Thanks a lot!
Best,
Juan
by juank
Mon Nov 23, 2009 4:36 pm
Forum: BioSemi Hardware
Topic: headcap for children
Replies: 1
Views: 5468

headcap for children

Hi,

What headcap size do you recommend for children between 5 and 10? I want to use two headcaps if it is possible to cover that range with only two headcaps, Is it possible?

best,

juan
by juank
Fri May 29, 2009 5:47 pm
Forum: BioSemi Hardware
Topic: possible defective electrode
Replies: 3
Views: 8119

Hi, yes, most of the time are the A31 and A32 electrodes... but sometimes there are more no neccesarily located near DRL. I think we didn't use too much gel, in fact I'm sure that we use less gel than when we start with biosemi... and the data had very good quality a month ago. It is possible that t...
by juank
Thu May 28, 2009 6:29 am
Forum: BioSemi Hardware
Topic: possible defective electrode
Replies: 3
Views: 8119

possible defective electrode

Hi, we observed that 2 electrodes (pin-type, active two) starts to present a lot 50Hz noise if we close a normal lamp, the other 126 electrodes seems normal (without noise). If move the lamp outside the electrically shielded room, all electrodes presents normal activity (without noise). Our hypothes...
by juank
Tue Sep 23, 2008 6:05 pm
Forum: BioSemi Hardware
Topic: gel
Replies: 0
Views: 4300

gel

I'm looking for alternative conductive gel, does anyboy use a another gel (different from signagel)?

best,

juan
by juank
Wed Jun 18, 2008 9:18 pm
Forum: BioSemi Hardware
Topic: head cap cleanning
Replies: 1
Views: 4974

head cap cleanning

Hi,

I clean the headcap with warm water, only immersing in the water and let it dry, but then appear a film of dry gel in the holes of the cap. Is there any stardard way to clean well the head cap?

thanks a lot!

juan
by juank
Wed Jun 18, 2008 9:09 pm
Forum: EEG data analysis
Topic: Electrodes coordinates for EEGLAB
Replies: 1
Views: 6915

Electrodes coordinates for EEGLAB

Hi,

I'm trying to import the biosemi electrode coordinates to EEGLAB, how can I do it? because I tried differente ways to import the locations of .xls file (from biosemi webpage) and I could't do it.

any suggestion will be very welcome!

thanks

juan