Scripting Language

Example

This example defines a visual search paradigm with the words ‘left’ and ‘right’ being the two possible targets. Subjects have to simply responds left or right depending on the target. There are two distractor conditions: half of the trials digits will be shown, and the other half of the trials numbers are shown written out as words.

SCREENAREA 150 150

FONT STD Arial 6
FONT Big Arial 10 1 bold
FONT Small Arial 4

;system settings
PICTURE Inst_Title T
Instruction
PICTURE Inst_Text Tl
Press left [SHL]-key when you see the word Left
Press right [SHR]-key when you see the word Right
PICTURE Start T
Press one of the response keys to start !
 ; instructions
PICTURE Left N
PICTURE Right NPICTURE Fix P 1
010
111
010PICTURE One N
PICTURE Two N
PICTURE Three N
PICTURE Four N
PICTURE Five N
PICTURE Six N
PICTURE Seven N
PICTURE Eight N
PICTURE Nine NPICTURE 1 N
PICTURE 2 N
PICTURE 3 N
PICTURE 4 N
PICTURE 5 N
PICTURE 6 N
PICTURE 7 N
PICTURE 8 N
PICTURE 9 N
 ; stimulus material
SET Digits V 1,2,3,4,5,6,7,8,9
SET
Words V One,Two,Three,Four,Five,Six,Seven,Eight,Nine
;set definitions for random selection
KEY Press
SHL SHR SPACE
; response keys
POSITION Circle C 0,0 80 0 6
POSITION
Center P 0 0
POSITION
Title P 0 -40
POSITION
Press P 0 40
; screen positions
TRIAL Instruct
SF Big
&SP ? Title
SF STD
&SP ? Center
SF Small
&SP ? Press 1 ?
WK Press
SF STD
 ; trial definition to display instructions
TRIAL T1
MP Circle
SP Fix Center 1 500
RK Press
FP ?=target Circle 1 3000 ?=distractors 6 1
CS 1000
; trial definition
; with variable parameters (?)
; to show variable target with
; distractors on a circle
BLOCK b1 2 2
Dig: 1 T1 Left Digits
Dig: 1 T1 Right Digits
Wrd: 1 T1 Left Words
Wrd: 1 T1 Right Words
; block definition
; and binding variable parameters
; of trials (?) with actual values
SESSION Visual Search
RUNTRIAL
Instruct Inst_Title Inst_Text Start 500
RUNBLOCKW
b1 4 0
RUNBLOCK
b1 40 2
; session definition
; with instruction,
; warm-up block,
; and valid block

 

G-18DSND749P