EEG alpha oscillation: Handwriting behavior toward working memory performance of normal children using correlation analysis

Author(s):  
Amirah Hazimah Abdul Majid ◽  
Rubita Sudirman ◽  
Siti Zubaidah Mohd Tumari
2021 ◽  
Author(s):  
Samantha Gregory ◽  
Hongfang Wang ◽  
Klaus Kessler

In this preregistered study (https://osf.io/s4rm9) we investigated the behavioural and neurological (EEG; alpha and theta) effects of dynamic non-predictive social and non-social cues on working memory. In a virtual environment realistic human-avatars initiated eye contact before dynamically looking to the left or right side of a table. A moving stick served as a non-social control cue. Kitchen items were presented in the valid cued or invalid un-cued location for encoding. Behavioural findings show a similar influence of the social and non-social cues on working memory performance. Alpha power changes were equivalent for the social and non-social cues during cuing and encoding. However, theta power changes revealed different patterns for the two cues. Theta power increased more strongly for the non-social cue compared to the social cue during initial cuing. Further, while for the non-social cue there was a significantly larger increase in theta power for valid compared to invalid conditions during encoding, this was reversed for the social cue, with a significantly larger increase in theta power in posterior electrodes for the invalid compared to valid conditions. Therefore, while social and non-social attention cues impact working memory performance in a similar fashion, the underlying neural mechanisms appear to differ.


Author(s):  
Ian Neath ◽  
Jean Saint-Aubin ◽  
Tamra J. Bireta ◽  
Andrew J. Gabel ◽  
Chelsea G. Hudson ◽  
...  

2012 ◽  
Author(s):  
Jaclyn Jansen ◽  
Gabriella Dimotsantos ◽  
Marian E. Berryhill

2019 ◽  
Author(s):  
Ashley DiPuma ◽  
Kelly Rivera ◽  
Edward Ester

Working memory (WM) performance can be improved by an informative cue presented during storage. This effect, termed a retro-cue benefit, can be used to explore mechanisms of attentional prioritization in WM. Directing attention to a single item stored in memory is known to increase memory precision while decreasing the likelihood of incorrect item reports and random guesses, but it is unclear whether similar benefits manifest when participants direct attention to multiple items stored in memory. We tested this possibility by quantifying memory performance when participants were cued to prioritize one or two items stored in working memory. Consistent with prior work, cueing participants to prioritize a single memory item yielded higher recall precision, fewer swap errors, and fewer guesses relative to a neutral cue condition. Conversely, cueing participants to prioritize two memory items yielded fewer swap errors relative to a neutral condition, but no differences in recall precision or guess rates. Although swap rates were less likely during the cue-two vs. neutral conditions, planned comparisons revealed that when participants made swap errors during cue-two trials they were far more likely to confuse two prioritized stimuli than they were to confuse a prioritized stimulus vs. a non-prioritized stimulus. Our results suggest that it is possible to prioritize multiple items stored in memory, with the caveat that doing so may increase the probability of confusing prioritized items.


Sign in / Sign up

Export Citation Format

Share Document