Two-alternative Forced Choice - Computational Models of Decision Making in 2AFC

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 Making

It 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 greatest and truest models for all orators ... is Demosthenes. One who has not studied deeply and constantly all the great speeches of the great Athenian, is not prepared to speak in public. Only as the constant companion of Demosthenes, Burke, Fox, Canning and Webster, can we hope to become orators.”
    —Woodrow Wilson (1856–1924)

    “Drug misuse is not a disease, it is a decision, like the decision to step out in front of a moving car. You would call that not a disease but an error of judgment.”
    —Philip K. Dick (1928–1982)

    “We are all humiliated by the sudden discovery of a fact which has existed very comfortably and perhaps been staring at us in private while we have been making up our world entirely without it.”
    —George Eliot [Mary Ann (or Marian)