Performance analysis of memory recollection and problem-solving cognitive processes using EEG signals

Ankita Mazumder, Priyanka Das, Poulami Ghosh, D. N. Tibarewala, Saugat Bhattacharyya

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The human brain has the ability to perform high-level multitasking with great efficiency. Cognition is one such domain of brain multitasking which includes attention, memorisation, recollection, decision-making, and problem-solving. In this study, we aim to study the aspects of brain involving memorisation, problem-solving and recollection. The brain signals are recorded in the form of electroencephalography (EEG) for the three mental tasks. Next, the work is approached as a simple pattern recognition problem. Power spectral density features corresponding to the three mental tasks are extracted from the EEG signals. These features are then fed as inputs to the AdaBoost (ensemble) classifier to distinguish among the different mental states. The accuracy of the three mental tasks, thus obtained, is more than 80%. Further, results show that temporal region, frontal region and parietal region are most active for memorisation, problem-solving and recollection, respectively.

Original languageEnglish
Pages (from-to)316-334
Number of pages19
JournalInternational Journal of Biomedical Engineering and Technology
Issue number4
Publication statusPublished (in print/issue) - 2 Dec 2015


  • AdaBoost.
  • Cognition
  • ensemble classifier
  • memorization
  • power spectral density
  • problem-solving
  • recollection


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