Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond
Created: January 18, 2014
Last Modified: January 18, 2025 by K. Borchert (katjab@millisecond.com), Millisecond
Script Copyright © Millisecond Software, LLC
This script runs the Manikin Test to test spatial reasoning described by Englund et al (1987). This implementation presents response buttons for mouse input/touch responding.
UNIFIED TRI-SERVICE COGNITIVE PERFORMANCE ASSESSMENT BATTERY (UTC-PAB) I. DESIGN AND SPECIFICATION OF THE BATTERY. ENGLUND, C.E., REEVES. D.L., SHINGLEDECKER, C.A., THORNE, D.R., WILSON, K.P., & HEGGE. F.W. (1987). REPORT NO. 87-10, NAVAL HEALTH RESEARCH CENTER, P 0 BOX 85122, SAN DIEGO, CALIFORNIA 92138 NAVAL MEDICAL RESEARCH AND DEVELOPMENT COMMAND, BETHESDA, MARYLAND (p.29)
7 minutes
Participants view Manikins superimposed on either a red square or green circle that hold a red square in one hand and a green circle in the other. Manikins can be right side up or upside down, can face towards participant ('forward') or face away from participant ('backward'). Participants have to decide as fast as possible if the manikin holds the shape that is congruent with the background (e.g. the red square) in the left or right hand and press corresponding buttons on the screen.
Practice Block: by default runs 1 block of 16 trials (all possible combinations once)
with performance (accuracy) feedback for 1s
Test Block: by default runs 4 blocks of 16 trials (no performance feedback)
16 manikins:
2 vertical rotation (up vs. down)
x 2 lateral rotation (forward vs. backwards)
x 2 shape (circle vs. square)
x 2 congruent hand (left vs right)
manikins provided by Millisecond (can be easily be exchanged for others under Editable Stimuli;
the file names should be kept as they are used to extract condition information about the stimulus)
Manikins show facial features, buttons, slit pockets, belt buckle when forward (aka facing towards the participant)
Manikins show hair on the head, back pockets, no buttons and no belt buckle when backwards
(when facing away from participant)
Instructions are provided by Millisecond in the form of html pages.
They are based on the ones published by Englund et al (1987).
To edit htm/html-files: open the respective documents in simple Text Editors such as TextEdit (Mac)
or Notepad (Windows).
File Name: manikintest_mi_summary*.iqdat
| Name | Description |
|---|---|
| inquisit.version | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| computer.touch | 0 = device has no touchscreen capabilities; 1 = device has touchscreen capabilities |
| computer.hasKeyboard | 0 = no external keyboard detected; 1 = external keyboard detected |
| startDate | Date the session was run |
| startTime | Time the session was run |
| subjectId | Participant ID |
| groupId | Group number |
| sessionId | Session number |
| elapsedTime | Session duration in ms |
| completed | 0 = Test was not completed 1 = Test was completed |
| propCorrect | Proportion correct (testblocks only) |
Summary Variables, Separated For Total, Correct, Incorrect, Righthand And Lefthand Responses |
|
| countTotal | Counts the total number of trials |
| meanRTTotal | Mean latency of all trials (in ms) |
| stdTotal | Standard deviation of latencies of all trials |
| medianRTTotal | Calculates the median of the sorted items (in ms) |
| maxRTTotal | Stores the minimum latency (in ms) |
| minRTTotal | Stores the maximum latency (in ms) |
| rangeTotal | Stores the range of latencies |
File Name: manikintest_mi_raw*.iqdat
| Name | Description |
|---|---|
| build | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| computer.touch | 0 = device has no touchscreen capabilities; 1 = device has touchscreen capabilities |
| computer.hasKeyboard | 0 = no external keyboard detected; 1 = external keyboard detected |
| date | Date the session was run |
| time | Time the session was run |
| subject | Participant ID |
| group | Group number |
| session | Session number |
| blockcode | The name the current block (built-in Inquisit variable) |
| blocknum | The number of the current block (built-in Inquisit variable) |
| trialcode | The name of the currently recorded trial (built-in Inquisit variable) |
| trialnum | The number of the currently recorded trial (built-in Inquisit variable) trialnum is a built-in Inquisit variable; it counts all trials run even those that do not store data to the data file. |
| verticalorientation | "U(pright)" vs. "D(ownside)" (aka standing on the head) |
| horizontalorientation | "F(orward)" vs. "B(ackward)" Forward facing => participant sees the front of the manikin Backward facing => participant sees the back of the manikin |
| stimShape | "C(ircle)" vs. "S(quare)" |
| congruentHand | "R(ight)" vs. "L(eft)" |
| stimulusItem | The presented image |
| response | The participant's response (LEFT vs. RIGHT) |
| correct | The correctness of the response (1 = correct; 0 = otherwise) |
| latency | The response latency (measured from onset of stimuli to pressing response button; in ms) |
The procedure can be adjusted by setting the following parameters.
| Name | Description | Default |
|---|---|---|
Design |
||
| numberPracticeBlocks | Number of practice blocks to run | 1 |
| numberTestBlocks | Number of testblocks to run | 4 |
Timing Parameters |
||
| getReadyDuration | Duration (in ms) of get ready trial | 3000 |
| practiceFeedbackDuration | The duration (in ms) of the feedbackstimulus | 1000 |