Computing spatial relations in left and right visual fields

Author(s): Wilkinson, D., Weekes, B.

Journal/Book: Brain Cognition. 1996; 32: 525 B St, Ste 1900, San Diego, CA 92101-4495. Academic Press Inc Jnl-Comp Subscriptions. 180-183.

Abstract: The paper reports a study in which subjects estimate whether a dot is left or right, above or below, near or far, or on or off the centre of a circle. Our results show that tasks vary in their difficulty and that, within a task, all decisions are not equally difficult. Specifically, near estimates are always slower than far estimates but especially so when presented to the left visual field-right hemisphere (LVF-RH). There was no evidence of an interaction between hemisphere and task. We discuss the data as showing a hemispheric difference in efficiency for computing spatial relations.

Note: Article Donnelly N, Univ Kent, Dept Psychol, Canterbury CT2 7NP, Kent, ENGLAND

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