EFFECT OF AUTOBIOGRAPHICAL FALSE MEMORY ON THE COMPLEXITY OF NEURAL OSCILLATIONS

Mohsen Shabani, Masoumeh Sadeghi, Javad Salehi, Hamidreza Namazi and Reza Khosrowabadi
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Mohsen Shabani: Institute for Cognitive and Brain Sciences, Shahid Beheshti University, Tehran, Iran
Masoumeh Sadeghi: Institute for Cognitive and Brain Sciences, Shahid Beheshti University, Tehran, Iran
Javad Salehi: ��Department of Psychology, University of Zanjan, Zanjan, Iran
Hamidreza Namazi: ��Faculty of Mechanical Engineering, Czech Technical University in Prague, Czech RepublicSubang Jaya, Selangor, Malaysia
Reza Khosrowabadi: Institute for Cognitive and Brain Sciences, Shahid Beheshti University, Tehran, Iran

FRACTALS (fractals), 2023, vol. 31, issue 09, 1-12

Abstract: Memory is an imperfect record of past experiences that enables us to operate in the present and think about the future. Although various factors may give a chance to a false recollection of information that may not occur. These false memories are formed based on various neuro-cognitive processes the underlying mechanism still needs to be well understood. Considering the extended searching when no memory trace is found, we hypothesized that the self-similarities in the brain activations must be higher during false memory recalls. Therefore, a language-free task based on autobiographical brand images was designed using the Deese–Roediger–McDermott (DRM) paradigm. The task was then tested on 24 healthy participants while the brain activities during the test were recorded using a 32-channel EEG system. Subsequently, the self-similarities in the brain activity pattern were estimated by taking the fractal dimension (FD) of the cleaned EEG data. Statistical analysis showed a significant increase in complexity during false memory recalls as compared to true memory recalls prominent in the frontal regions. Interestingly, the EEG findings were consistent in both genders and significantly correlated with subjects’ accuracy rates and reaction times (RTs) to recall.

Keywords: Katz Fractal Dimension; False Memory; Deese/Roediger–McDermott (DRM) Paradigm; Electroencephalography (EEG); Complexity (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S0218348X23501165

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