Page 12
37370 Instruction Manual (Rev. 0)
5.4
Carrying out the Test on the Animal
After the acclimation period, the I.R. source placed under the glass floor (see picture) is
positioned by the operator directly beneath the hind paw. A trial is commenced by de-
pressing the START key on either side of the vessel, or
F1
(
STR
) on the front panel.
When the rat feels pain and withdraws its paw, the I.R. source switches off and the reac-
tion time counter stops. The withdrawal latency to the nearest 0.1 s is automatically de-
termined.
The datum shown on the display can be printed on the Mini-Printer or routed to the PC,
see paragraph 6-OPERATING WITH MINI PRINTER AND PC.
5.4.1
Note on Wet Surfaces
We recommend absorbing with cotton wool any occasional large emission of urine during
familiarization or test time. A plantar surface, if wet by urine, will be definitely less sensi-
tive to the thermal stimulus because of the large specific heat of any watery solution.
Be patient and dry the glass pane before the first test and at least between each test.
5.5
Durham Holders for Orofacial Stimulation
The Durham Animal Holders are the newest accessory for use with the Plantar Test and
Dynamic Plantar Aesthesiometer, manufactured by Ugo Basile.
These animal holders extend the
scope of the infrared (IR) thermal
stimulus of the Plantar Test to
tri-
geminal stimulation
. In fact, this
new invention allows the applica-
tion of the same stimulus to the
region innervated by the trigemi-
nal nerve.
The 37100 includes two holders,
form-moulded for testing specific
size ranges; the two sizes have
been optimized for young adult
rats and for bigger rats.
See ordering information, paragraph 12.2-Optional and bibliography, paragraph 13.3.
5.6
How to Set a Customized Experimental Configuration
This function enables the operator to personalize the basic datum by adding, in se-
quence:
sequence number (see 5.6.1)
Summary of Contents for 37370
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