FlowModel

If the optional Flow parameter is set, the names of expression definitions must be listed that should be executed to form the execute the flow model:

Format: ExpressionName_1
ExpressionName_2.
..

 Example of classifying a mouse click into ‘far’ vs. ‘near’ from target location

EXPRESSION CheckDist
ifelse(get_rsp('dist') > 5, 'far', 'near')

TRIAL T1
TL Circle KeyTbl 10 0

RK Press
SP Target Circle ? 0 1

OE CheckDist
far: SP Far Center(1) 1000
near: SP Near Center(1) 1000

 Example of updating MaxRt to 1.5 of the standard deviation of all response latencies

VARIABLE MaxRt 2000

EXPRESSION UpdateMaxRt
@MaxRt = get_blk('mean_rt') + (1.5 * get_blk('sd_rt'))

TRIAL T1
…
EX UpdateMaxRt

RK Press MaxRt
SP Target Circle ? 0 1

 Example of displaying last reaction time

Variable RT

PICTURE LastRT T
Your last RT was @vRT@ msec

EXPRESSION GetLastRt
@RT = get_rsp('rt')
@RT = numform(@RT, 3, 4)

TRIAL T1
RK -
SP Press Circle 1 0 1

EX GetLastRt
SP LastRT Center 1 2000

 Example of a flow model which generated two different random numbers

Variable rnd1
Variable rnd2

EXPRESSION GenRndNumbers
@rnd1 = random(10)
@rnd2 = random(10)

EXPRESSION isEqualNumbers
@rnd1 == rnd2

EXPRESSION GetNumbers DOWHILE
GenRndNumbers          ; DO GenRndNumbers
isEqualNumbers          ; WHILE (isEqualNumbers)

TRIAL Sample
EX GetNumbers          ; generate two different numbers