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University of Cambridge > Talks.cam > The Craik Journal Club > Limitations on flexible allocation of visual short-term memory resources with multiple levels of goal-directed attentional prioritization
Limitations on flexible allocation of visual short-term memory resources with multiple levels of goal-directed attentional prioritizationAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Adam Triabhall. This week we will discuss and debate a very recent paper by Lockhart and colleagues, published in Attention, Perception, & Psychophysics (2023). Abstract: “Studies suggest that visual short-term memory (VSTM) is a continuous resource that can be flexibly allocated using probabilistic cues that indicate test likelihood (i.e., goal-directed attentional priority to those items). Previous studies using simultaneous cues have not examined this flexible allocation beyond two distinct levels of priority. Moreover, previous studies have not examined whether there are individual differences in the ability to flexibly allocate VSTM resources, as well as whether this ability benefits from practice. The current study used a continuous report procedure to examine whether participants can use up to three levels of attentional priority to allocate VSTM resources via simultaneous probabilistic spatial cues. Three experiments were performed with differing priority levels, cues, and cue presentation times. Group level analysis demonstrated flexible allocation of VSTM resources; however, there was limited evidence that participants could use three goal-directed priority levels. A temporal analysis suggested that task fatigue, rather than practice effects, may interact with item priority. A Bayesian individual-differences analysis revealed that a minority of participants were using three levels of attentional priority, demonstrating that, while possible, it is not the predominant pattern of behaviour. Thus, we provided evidence that flexible allocation to three attention levels is possible under simultaneous cuing conditions for a minority of participants. Flexible allocation to three categories may be interpreted as a skill of high-performing participants akin to high memory capacity” (Lockhart et al., 2023). Reference: Lockhart, H., Dube, B., MacDonald, K. J., Al-Aidroos, N., & Emrich, S. M. (2023). Limitations on flexible allocation of visual short-term memory resources with multiple levels of goal-directed attentional prioritization. Attention, Perception & Psychophysics. https://doi.org/10.3758/s13414-023-02813-2 This talk is part of the The Craik Journal Club series. This talk is included in these lists:
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