Table 1.

Analogies between spatial and lexical search tasks

Task	Spatial search	Lexical search
Resource	Pixels that change color	Words hidden in letter sets
Resource patches	Resource-filled regions of the screen	Level 1: Sets of letters Level 2: Sources of solutions within a letter set
Cost of transitioning between patches	Time needed to travel between patches	Level 1: 15 seconds between letter sets Level 2: Time to retrieve a letter sample from a new source
Exploration strategy	Move to unexplored screen regions and check for resources	Level 1: Give up on a current letter set and receive a new set Level 2: Give up on current solution source and transfer attention to another
Exploitation strategy	Remain in spatial region	Level 1: Keep trying to find words in current letter set Level 2: Keep using the same solution source