Medoc PATHWAY - Page 80

Pathway Technical Reference Manual
Proprietary 80 of 190
Parameter
Description
Return Rate
(°C/sec)
Defines the temperature change rate from destination back to
baseline temperature. Valid range: 0.1 to 5°C/Sec.
Max. Time at
Destination (sec)
Defines the maximum duration for Thermode temperature to
remain at destination temperature before returning to baseline.
If subject's response is 'YES' – the temperature will
immediately return to baseline.
If subject's response is 'NO' – the temperature will remain at
destination for the maximum duration as specified.
Valid range: 0 to 600 (sec). May be limited by safety
limitations.
Min. Interval (sec)
Minimum Inter-Stimulus-Interval (ISI). Valid range: 0 to 600
(sec)
Max. Interval (sec)
Maximum Inter-Stimulus-Interval (ISI). Valid range: 0 to 600
(sec). Actual ISI will be randomized between min and max
values.
First Choice Step
(°C)
The initial step size that is used until the first 'YES' response is
given. Valid range: 0.2 to 5 °C
Final Choice Step
(°C)
The smallest step size that is used in the final Turns Around
Threshold. Valid range: 0.1 to 2 °C
Turns Around
Threshold
The number of turns (alternating 'YES' and 'NO' responses) at
the Final Choice Step which is required to complete the test.
Valid range: 1 to 10.
Number of Tests
The number of repetitions for entire test. Valid range: 1 to 5.
Dummy Option
Randomized dummy trials where no actual stimulus is given to
increase test reliability. Frequency of dummy trials is
randomized with an average of 10% of all trials.
Randomize
Randomize between trials of several tests.
Display Message
Defines when message to respond is displayed:
 Destination – Display message upon reaching
destination temperature
 Return to Baseline – Display message after
temperature returns to baseline.
No Response on
Destination
Defines the behavior of the program if the subject responds
after the Maximum Time at Destination is over. Relevant
only if Maximum Time at Destination is larger than 0 and
Display Message is set to Destination.
 Always Accept – Accept subject’s response and
continue the test
 Always Repeat – Ignore subject’s response and
repeat the same trial again
 Manually Select – Manually select whether the
response should be accepted (press ‘A’) or
ignored (press ‘I’).
Standard events
Different evens which can be indicated during the test via TTL
or Sound See section 7.8.