The function of visual search and memory in sequential looking tasks

Abstract

eye movements made when only looking are different from those made when tapping. Visual search functions as a separate process, incorporated into both tasks: it can be used to improve performance when memory load is heavy.

Eye Movement Analysis during Activities of Daily Living (ADL) among Fully Sighted School Children

“…This indicates that learning may not significantly influence change in eye movement parameters when performing ADL that only require looking (Epelboim et al 1999(Epelboim et al , 1997(Epelboim et al , 1995. The finding supports previous studies reported that learning was less effective when the participants were just required to look at the task rather than doing it.…”

“…Previous studies have shown that there was association between memory and eye movements (Epelboim et al 1997(Epelboim et al , 1995Melcher & Kowler 2001). However, those studies were conducted with adult's participants.…”

The relative timing between eye and hand in rapid sequential pointing is affected by time pressure, but not by advance knowledge

“…A dependent coupling in which both effectors respond to a common central command would not permit one system to adapt without affecting the other (Scarchilli and Vercher 1999). It is perhaps not surprising, then, that there have been numerous studies showing that the spatial and temporal coordination of eye and hand is altered in response to changing task demands (Epelboim et al 1995;Ma-Wyatt et al 2010;Pelz et al 2001). One such demand is the time available to complete a sequence of movements.…”

Anticipatory eye movements in sensorimotor actions: on the role of guiding fixations during learning

“…It has been shown that these anticipatory guiding fixations are necessary to perform accurately (Prablanc et al 1979;Prablanc et al 1986;Abrams et al 1990). Besides guiding fixations (Epelboim et al 1995;Land and Tatler 2009), there are two further types of fixations that are performed during object-related sensorimotor actions. Searching fixations are used to find the upcoming target object (Foerster and Schneider In Prep;Epelboim et al 1995;Foerster and Schneider 2015).…”

“…humans fixate upcoming target locations before they act on them (Epelboim et al 1995;Land et al 1999;Hayhoe et al 2003;Land and Tatler 2009;Foerster et al 2011). Before grasping a pen, for instance, we look at the pen at exactly that position where the hand will contact it.…”