On the neural mechanisms underlying the protective function of retroactive cuing against perceptual interference: Evidence by event-related potentials of the EEG

• Published in: Biological psychology Vol. 124; pp. 47 - 56
• Main Authors: Schneider, Daniel, Barth, Anna, Getzmann, Stephan, Wascher, Edmund
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.03.2017
• Subjects: Adult; Attention - physiology; Cues; Electroencephalography - methods; Evoked Potentials - physiology; Female; Humans; Male; Memory, Short-Term - physiology; Perceptual Masking - physiology; Spatial Processing - physiology; Young Adult
• ISSN: 0301-0511; 1873-6246
• DOI: 10.1016/j.biopsycho.2017.01.006

•Retro-cues protect working memory precision against interference/distraction.•Retro-cues lead to lower posterior N1 amplitudes referred to distractor processing.•P3b referred to the distractor display is suppressed following a retro-cue.•ERP results reveal that retro-cues inhibit working memory encoding of distractors. This EEG study investigated the protective effect of retroactive attentional focusing on working memory. To this effect, we used a visuo-spatial working memory task and presented block-wise distractor displays after working memory contents had been updated by means of a retroactive cue (retro-cue). Retroactive attention attenuated the interfering effect of distractors on memory precision. The reduction of working memory load by means of a selective retro-cue was reflected by a decline of a negative slow wave over parietal sites. Posterior N1 to the distractor was reduced following a selective retro-cue compared to a neutral retro-cue condition, most notably at left hemispheric sites. P3b referred to the distractor was suppressed completely only following a selective retro-cue. This suggests that focusing on only a subset of visuo-spatial information represented in working memory releases cognitive resources for preventing the in-depth processing of subsequently irrelevant visual events, thereby inhibiting their transfer into working memory.