Could you state the actual equation? It doesn’t sound like you’ve simplified it much; its current form bugs me. Also I assume there must be some constant of proportionality in there, since it seems unlikely the dimensions will work out otherwise… unless “impulsiveness” is chosen to have dimensions so that it does?
Edit: For that matter, how are we measuring motivation in this context? What does the output actually mean?
Could you state the actual equation? It doesn’t sound like you’ve simplified it much; its current form bugs me. Also I assume there must be some constant of proportionality in there, since it seems unlikely the dimensions will work out otherwise… unless “impulsiveness” is chosen to have dimensions so that it does?
Edit: For that matter, how are we measuring motivation in this context? What does the output actually mean?
See Konig and Steel (2006). The PDF is linked above.