Reaction Times

[Mediri]

I'm trying to create a program that would display the reaction time of a person
reaction to an object on the computer. I don't know how to write this code.
Suggestions would be great.

[Danny Kalev]

First of all, you want to post technical questions on the c++.general
ng. Anyway, depending on the stimulus you intend to present, say a
character, a number or a string, you can do something like the
following:

char c;
cout<<"press a key immediately after the stimulus has been shown"<<endl;
cout << stimulus <<endl;
// here you start counting time
// see:
http://gethelp.devx.com/techtips/cpp.../10min1200.asp
time_t start=time()
cin>>c;
time_t end = time();
double reaction_time=difftime(end,start);


If it's likely that the reaction time is shorter than a second, you want
to use the clock() function or the follwoing class:
http://gethelp.devx.com/techtips/cpp.../10min0500.asp

Danny



Mediri wrote:
>
> I'm trying to create a program that would display the reaction time of a person
> reaction to an object on the computer. I don't know how to write this code.
> Suggestions would be great.