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The
BioSemi headcap has been developed in cooperation with Dr.
Peter Praamstra at the Behavioral
Brain Sciences Center, University of Birmingham, United Kingdom.
The
headcap consists of an elastic cap with plastic, electrode holders.
The cap itself does not contain electrodes. The cap is placed on
the subject's head, and the electrode holders are filled with electrode
gel with a syringe. Because of the active electrode setup, high
electrode impedance's can be tolerated, so no skin preparation is
required. Thus, the usual, unpleasant and time consuming scrubbing
of the scalp after the paste is applied can be omitted. After the
buttons are filled with paste, the active electrodes are plugged
in the cap one by one. The procedure is fast and reliable (5-10
minutes for 32 channels), and allows high density EEG measurement
with a minimum of preparation time and subject discomfort.
Caps with a  ,
can be delivered straight from stock. The
electrode position coordinates
of standard BioSemi headcaps are downloadable. Since the
electrode holders make the caps a little bit smaller, please order
your caps half a size bigger. (so if you want a Medium cap, please
order a Medium/Large cap). Standard,
the caps have ear-slits for easy accessing of the ears. Surgical
caps are available on demand. Different electrode layouts are
possible on client specification. It is also possible to assemble
your own cap layout. Caps are delivered complete with a 5"
(12cm) velcro chin strap (7" strap is included starting from
ML sizes). |
| |
Ordercode
(xx=Number of electrodes) |
Size |
Available
nr. of electrodes |
Color |
Head
size displayed in cap |
Standard
stock |
| CAP
INFA3 xx |
Infa
3 |
16,32,64 |
Brown |
34-38cm |
|
| CAP
INFA2/3 xx |
Infa
2/3 |
16,32,64 |
Pink/Brown |
36-40cm |
|
| CAP
INFA2 xx |
Infa
2 |
16,32,64 |
Pink |
38-42cm |
|
| CAP
INFA1/2 xx |
Infa
1/2 |
16,32,64 |
Light
Blue/Pink |
40-44cm |
|
| CAP
INFA1 xx |
Infa
1 |
16,32,64 |
Light
Blue |
42-46cm |
|
| CAP
XSINFA1 xx |
Extra
Small/ Infa 1 |
16,32,64 |
Green/
Light Blue |
44-48cm |
|
| CAP
XS xx |
Extra
Small |
16,32,64,128 |
Green |
46-50cm |
|
| CAP
SXS xx |
Small/Extra
Small |
16,32,64,128 |
Yellow/Green |
48-52cm |
|
| CAP
S xx |
Small |
16,32,64,128,160 |
Yellow |
50-54cm |
|
| CAP
MS xx |
Medium/Small |
16,32,64,128,160 |
Red/Yellow |
52-56cm |
|
| CAP
M xx |
Medium |
16,32,64,128,160,256 |
Red |
54-58cm |
|
| CAP
ML xx |
Medium/Large |
16,32,64,128,160,256 |
Red/Blue |
56-60cm |
(ML is most popular size) |
| CAP
L xx |
Large |
16,32,64,128,160,256 |
Blue |
58-62cm |
|
| CAP
LXL xx |
Large/Extra
Large |
16,32,64,128,160,256 |
Blue/Brown |
60-64cm |
|
| CAP
XL xx |
Extra
Large |
16,32,64,128,160,256 |
Brown |
62-66cm |
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