Working memory load reduces the processing of outcome evaluation involving others but not oneself: Event‐related potential evidence

2021 ◽  
Author(s):  
Huiyan Lin ◽  
Jiafeng Liang
Keyword(s):  
Working Memory ◽  
Memory Load ◽  
Outcome Evaluation ◽  
Event Related Potential ◽  
Working Memory Load

scholarly journals Effects of Age and Working Memory Load on Syntactic Processing: An Event-Related Potential Study

2018 ◽  
Vol 12 ◽  
Author(s):  
Graciela C. Alatorre-Cruz ◽  
Juan Silva-Pereyra ◽  
Thalía Fernández ◽  
Mario A. Rodríguez-Camacho ◽  
Susana A. Castro-Chavira ◽  
...  
Keyword(s):  
Working Memory ◽  
Memory Load ◽  
Event Related Potential ◽  
Syntactic Processing ◽  
Working Memory Load ◽  
Potential Study

scholarly journals Working memory availability affects neural indices of distractor processing during visual search

2018 ◽  
Author(s):  
Dion T. Henare ◽  
Jude Buckley ◽  
Paul M. Corballis
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Memory Load ◽  
Individual Performance ◽  
Event Related Potential ◽  
Neural Mechanisms ◽  
Human Cognition ◽  
Working Memory Load ◽  
Distractor Processing ◽  
Selective Processing

AbstractWorking memory and selective attention are traditionally viewed as distinct processes in human cognition. However, increasing research demonstrates significant overlap between these constructs such that as working memory availability decreases, individuals perform worse on attention-based tasks. To date, the neural mechanisms involved in this interaction are unknown. We measured three candidate lateralized event-related potential components (N2pc, Ptc, and SPCN) to observe the effects of increased working memory load on selective processing of targets and distractors. We found that increased working memory load impaired the processing of distractors, but not targets, and this was reflected in attentuation of the Ptc to distractors. We also found that individual performance on the task is related to the neural response to both targets and distractors. This study suggests that working memory availability impacts individuals’ ability to disengage from irrelevant stimuli, and that individual differences in visual search ability under load are related to both target and distractor processing.

scholarly journals Working Memory Load for Faces Modulates P300, N170, and N250r

2008 ◽  
Vol 20 (6) ◽  
pp. 989-1002 ◽  
Author(s):  
Helen M. Morgan ◽  
Christoph Klein ◽  
Stephan G. Boehm ◽  
Kimron L. Shapiro ◽  
David E. J. Linden
Keyword(s):  
Working Memory ◽  
Memory Load ◽  
Event Related Potential ◽  
Target Face ◽  
P300 Amplitude ◽  
Working Memory Load ◽  
N170 Component ◽  
Higher Visual Areas ◽  
First Time ◽  
Unfamiliar Faces

We used event-related potential (ERP) methodology to examine neural activity associated with visual working memory (WM) for faces. There were two main goals. First, to extend previous findings of P300 load modulation to WM for faces. Second, to examine whether N170 and N250r are also influenced by WM load. Between one and four unfamiliar faces were simultaneously presented for memory encoding. After a 1-sec delay, a target face appeared, and participants had to judge whether this face was part of the previous face array. P300 amplitude decreased as WM load increased, and this P300 suppression was observed at both encoding and retrieval. WM load was also found to modulate other ERPs. The amplitude of the N170 elicited by the target face decreased with load, and this N170 decrease leveled off at load 2, reflecting the behavioral WM capacity of around two faces. In addition, the N250r, observed as an ERP difference for target faces that were present in the encoding array relative to target faces that were absent, was also reduced for higher WM loads. These findings extend previous work by showing that P300 modulation by WM load also occurs for faces. Furthermore, we show, for the first time, that WM load affects the N250r and the early visual N170 component. This suggests that higher visual areas play an important role in WM for faces.

Visual Search Facilitation in Repeated Displays Depends on Visuospatial Working Memory

2012 ◽  
Vol 59 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Angela A. Manginelli ◽  
Franziska Geringswald ◽  
Stefan Pollmann
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Control Experiment ◽  
Memory Load ◽  
Contextual Cueing ◽  
Long Term Memory ◽  
Visuospatial Working Memory ◽  
Working Memory Load ◽  
Memory Resources

When distractor configurations are repeated over time, visual search becomes more efficient, even if participants are unaware of the repetition. This contextual cueing is a form of incidental, implicit learning. One might therefore expect that contextual cueing does not (or only minimally) rely on working memory resources. This, however, is debated in the literature. We investigated contextual cueing under either a visuospatial or a nonspatial (color) visual working memory load. We found that contextual cueing was disrupted by the concurrent visuospatial, but not by the color working memory load. A control experiment ruled out that unspecific attentional factors of the dual-task situation disrupted contextual cueing. Visuospatial working memory may be needed to match current display items with long-term memory traces of previously learned displays.

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