Spatial-numerical association of response codes

The SNARC has been observed primarily in two scenarios: attentional and oculomotor. The first of these involves people being faster to detect left probes after smaller numbers are shown and right probes after large numbers, whereas the oculomotor effects are seen when participants look at greater speeds towards the left after detecting small numbers and to the right after detecting large ones. Newer research shows a motor bias to also be associated with the SNARC effect. In an experiment conducted into random number generation, participants tended to generate numbers of a larger magnitude when turning their heads to the right, and numbers of a smaller magnitude when turning their heads to the left. This has been replicated using hand sizes: smaller distances between the index finger and thumb when generating a random number evoked smaller numbers, and larger spaces evoked larger numbers. == References ==