TagLast edit: 16 Jul 2023 4:11 UTC by RomanHauksson

The n-back task is a cognitive test in which a player is presented with a sequence of stimuli (such as squares flashing in different positions on a grid or different letters being read out loud) and presses a button when the current stimulus matches the one from n steps earlier in the sequence.

Some claim that this game increases the player’s working memory capacity over time with practice, which might be a proxy for fluid intelligence itself, but the evidence for both claims is controversial. If true, this would mean one could increase their IQ by regularly practicing the game.

The number of previous steps a player must remember, n, can be adjusted to make the game more or less difficult. The number of different kinds of stimuli can also be adjusted. For example, in the most popular variant of the game, “dual n-back”, players are presented with two simultaneous stimuli. At each step, players see a square in one of nine positions on a grid and simultaneously hear the name of a letter read out loud, and they must press one of two buttons independently to indicate when a letter or position was repeated from n steps back.

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Stats Ad­vice on a New N-back Game

Antisuji29 May 2013 21:44 UTC
7 points
8 comments3 min readLW link

Dual n-back news

gwern8 Oct 2010 22:16 UTC
17 points
5 comments1 min readLW link

N-back news: Jaeggi 2011, or, is there a psy­chol­o­gist/​statis­ti­cian in the house?

gwern16 Jun 2011 18:47 UTC
22 points
23 comments1 min readLW link

Ex­pe­rience with dual n-back?

NancyLebovitz22 Jul 2011 14:44 UTC
6 points
13 comments1 min readLW link

Dual N-Back browser-based “game” in pub­lic alpha-test­ing state.

Logos0110 Jul 2012 3:36 UTC
6 points
9 comments1 min readLW link

Akra­sia Tac­tics Review

orthonormal21 Feb 2010 4:25 UTC
92 points
151 comments2 min readLW link
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