Computational Models of Decision Making in 2AFC
The 2AFC task has yielded consistent behavioral results on decision making, which lead to the development of formal models attempting to model the dynamics of decision making.
There are typically three assumptions made by computational models using the 2AFC:
i) evidence favoring each alternative is integrated over time; ii) the process is subject to random fluctuations; and iii) the decision is made when sufficient evidence has accumulated favoring one alternative over the other. —Bogacz et al., The Physics of Optimal Decision MakingIt is typically assumed that the difference in evidence favoring each alternative is the quantity tracked over time and that which ultimately informs the decision - however, evidence for different alternatives could be tracked separately.
Read more about this topic: Two-alternative Forced Choice
Famous quotes containing the words models, decision and/or making:
“The parents who wish to lead a quiet life I would say: Tell your children that they are very naughty—much naughtier than most children; point to the young people of some acquaintances as models of perfection, and impress your own children with a deep sense of their own inferiority. You carry so many more guns than they do that they cannot fight you. This is called moral influence and it will enable you to bounce them as much as you please.”
—Samuel Butler (1835–1902)
“I know my fate. One day my name will be tied to the memory of something monstrous—a crisis without equal on earth, the most profound collision of conscience, a decision invoked against everything that had previously been believed, demanded, sanctified. I am no man, I am dynamite!”
—Friedrich Nietzsche (1844–1900)
“Marriage. The state or condition of a community consisting of a master, a mistress and two slaves, making in all, two.”
—Ambrose Bierce (1842–1914)