Neurophysiological Insights into Memory: EEG Analysis of Young Adults During Cognitive Tests

Pavana Krishnamoorthy, Dr. Shreelaxmi V Hegde

Abstract: Background: Detecting learners' cognitive profiles is a key step towards individualised and customised instruction. Our aim is to Explore the relationship between EEG brainwave activity during memory tasks and the activity of alpha and theta waves in parietal and frontal area of cerebral cortex was compared to scores on the P.G.I memory scale. Methods: While wearing an EEG headset, the participants take a Battery of memory test- P.G.I memory scale to evaluates their entire cognitive profile. Second, the memory scores are calculated out. After that, frequency-domain characteristics are retrieved from the gathered EEG data. Then Regional EEG Activity in Frontal Regions and Parietal Regions were used as outcome measures. Result: A Significant difference in Alpha and Theta wave activity between different memory performance groups are observed in frontal area (F3, F8, F7) Notably, Excellent performers had significantly higher Theta activity compare with alpha wave activity. F3 region (P< 0.04), F8 region (P<0.001), Above Average Memory(P<0.001), F7 region (P<0.004) Average Memory and in P3 Region significantly lower Theta wave and higher alpha wave activity can see in average memory group (P<0.07) also it is observed that Frontal areas show more significant higher theta activity and lower alpha activity compare with Parietal area during memory task. Conclusion: Theta wave activity appears to play a role in memory performance, with higher Theta power associated with better memory, particularly in the F3 and F8 frontal regions. and it is concluded that Frontal brain regions are more sensitive to memory performance differences than parietal region.

Keywords: EEG, Electroencephalography, long-term memory, spectral analysis, cognition

How to Cite?: Pavana Krishnamoorthy, Dr. Shreelaxmi V Hegde, "Neurophysiological Insights into Memory: EEG Analysis of Young Adults During Cognitive Tests", Volume 14 Issue 5, May 2025, International Journal of Science and Research (IJSR), Pages: 1525-1530, https://www.ijsr.net/getabstract.php?paperid=SR25523154624, DOI: https://dx.doi.org/10.21275/SR25523154624