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Modelling Autobiographical Memory Loss Across Life Span


Authors: D. Wang, A.-H. Tan, C. Miao, and A. A. Moustafa
Title: Modelling Autobiographical Memory Loss Across Life Span
Abstract: Neurocomputational modelling of long-term memory is a core topic in computational cognitive neuroscience, which is essential towards self-regulating brain-like AI systems. In this paper, we study how people generally lose their memories and emulate various memory loss phenomena using a neurocomputational autobiographical memory model. Specifically, based on prior neurocognitive and neuropsychology studies, we identify three neural processes, namely overload, decay and inhibition, which lead to memory loss in memory formation, storage and retrieval, respectively. For model validation, we collect a memory dataset comprising more than one thousand life events and emulate the three key memory loss processes with model parameters learnt from memory recall behavioural patterns found in human subjects of different age groups. The emulation results show high correlation with human memory recall performance across their life span, even with another population not being used for learning. To the best of our knowledge, this paper is the first research work on quantitative evaluations of autobiographical memory loss using a neurocomputational model.
Keywords: 
Conference Name: Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence
Location: Honolulu, Hawaii, USA
Publisher: AAAI
Year: 2019
Accepted PDF File: Modelling_autobiographical_memory_loss_across_life_span_accepted.pdf
Permanent Link: https://doi.org/10.1609/aaai.v33i01.33011368
Reference: D. Wang, A.-H. Tan, C. Miao, and A. A. Moustafa, "Modelling Autobiographical Memory Loss Across Life Span," in Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence, Honolulu, Hawaii, USA, January-February 2019, vol. 33, no. 01, pp. 1368-1375: AAAI
bibtex: 
@inproceedings{LILY-c166, 
   author	= {Wang, Di and Tan, Ah-Hwee and Miao, Chunyan and Moustafa, Ahmed A.},
   title		= {Modelling Autobiographical Memory Loss Across Life Span},  
   booktitle	= {Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence}, 
   year		= {2019}, 
   month	= {January--Feburary}, 
   pages	= {1368-1375}, 
   location	= {Honolulu, Hawaii, USA},
   publisher	= {AAAI},
}