AFC

AFC is an abbreviation that may refer to:

Organizations

Sports

Two-alternative forced choice

Two-alternative forced choice (2AFC) (and the variant Two-interval forced choice (2IFC)) Task is a psychophysical method, developed by Gustav Theodor Fechner, for eliciting responses from a person about his or her experiences of a stimulus. Specifically, the 2AFC experimental design is commonly used to test speed and accuracy of choices between two alternatives given a timed interval. The task is an established controlled measure of choice and is widely used to test a range of choice behaviors in animals and in humans. The basic components of a 2AFC task are 1) two alternative choices presented simultaneously (e.g. two visual stimuli), 2) a delay interval to allow a response/choice, 3) a response indicating choice of one of the stimuli.

Behavioural Experiments with 2AFC

There are various manipulations in the design of the task, engineered to test specific behavioral dynamics of choice. In one well known experiment of attention that examines the attentional shift, the Posner Cueing Task uses a 2AFC design to present two stimuli representing two given locations. In this design there is an arrow that cues which stimulus (location) to attend to. The person then has to make a response between the two stimuli (locations) when prompted. In animals, the 2AFC task has been used to test reinforcement probability learning, for example such as choices in pigeons after reinforcement of trials. A 2AFC task has also been designed to test decision making and the interaction of reward and probability learning in monkeys.

2011 AFC Asian Cup

The 2011 AFC Asian Cup finals were held in Qatar on 7–29 January 2011. It was the fifteenth time the tournament has been held, and the second time it has been hosted by Qatar, the other being the 1988 AFC Asian Cup. Japan won the cup after a 1–0 win against Australia, and earned the right to compete in the 2013 FIFA Confederations Cup in Brazil as the representative from AFC.

A television viewing audience of 484 million in 80 countries across the Asia-Pacific region, Europe, North America and North Africa witnessed Japan defeat Australia 1–0 in the final.

Host selection

Qatar, India and Iran all lodged interest in hosting the 2011 AFC Asian Cup, while Australia also considered making a late bid. Qatar officially submitted their bid on 19 June 2006, while India withdrew their interest and Iran failed to submit proper documentation for their bid on time.

Qatar was announced as host nation on 29 July 2007, during the 2007 AFC Asian Cup in Jakarta, Indonesia. Due to FIFA regulations stating that confederation events can be hosted either in January or July, and July being peak summer heat in the Middle East, it was also announced that the tournament would be held in January of that year.