![]() ![]() Ten experiments shed more light on the Object-Oriented Episodic Record model (Jones, 1993). The results support the view that the disruption of memory for auditory items, like memory for visually presented items, is dependent on the number of different irrelevant sounds presented and the size of the set from which these sounds are taken. In Experiments 3a and 3b the number of different sounds, the "token-set" size (Tremblay & Jones, 1998), in an irrelevant sequence also influenced the magnitude of disruption in both irrelevant sound and compound suffix conditions. Disruption thus depends on the number of sounds in the irrelevant sequence. Experiment 2 showed that two different utterances spoken once (a heterogeneous compound suffix LeCompte & Watkins, 1995) produced less disruption to serial recall than 15 repetitions of the same sequence. In Experiment 1 an acoustically changing sequence of 30 irrelevant utterances was more disruptive than 30 repetitions of the same utterance (the changing-state effect Jones, Madden, & Miles, 1992) whether the to-be-remembered items were visually or auditorily presented. We discuss these patterns in the context of the serial order memory literature and object file theory.įour experiments investigate the hypothesis that irrelevant sound interferes with serial recall of auditory items in the same fashion as with visually presented items. We conclude that memory for objects in scenes, when serialized by fixation sequence, shows recency and prerecency effects that are similar to isolated objects presented sequentially over time. In Experiment 2, we used sequential presentation and variable delays to explore the contributions of decay and extrafoveal processes to these behaviors. A steep recency benefit was found over the 1-2 intervening object range that declined into an above-chance prerecency asymptote over the remainder of the forgetting function. The task was then to select the target from four alternatives. After observers' gaze left a predetermined target, they could fixate from 1-7 intervening nontargets before the scene was replaced by a spatial probe at the target location. ![]() Experiment 1 had observers freely view nine-item scenes. ![]() A gaze-contingent short-term memory paradigm was used to obtain forgetting functions for realistic objects in scenes. ![]()
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