Neural Erosion: Emulating Controlled Neurodegeneration and Aging in AI Systems

Fuente: arXiv
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Autori principali: Alexos, Antonios, Tsai, Yu-Dai, Domingo, Ian, Pishgar, Maryam, Baldi, Pierre
Natura: Preprint
Pubblicazione: 2024
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author Alexos, Antonios
Tsai, Yu-Dai
Domingo, Ian
Pishgar, Maryam
Baldi, Pierre
author_facet Alexos, Antonios
Tsai, Yu-Dai
Domingo, Ian
Pishgar, Maryam
Baldi, Pierre
contents Creating controlled methods to simulate neurodegeneration in artificial intelligence (AI) is crucial for applications that emulate brain function decline and cognitive disorders. We use IQ tests performed by Large Language Models (LLMs) and, more specifically, the LLaMA 2 to introduce the concept of ``neural erosion." This deliberate erosion involves ablating synapses or neurons, or adding Gaussian noise during or after training, resulting in a controlled progressive decline in the LLMs' performance. We are able to describe the neurodegeneration in the IQ tests and show that the LLM first loses its mathematical abilities and then its linguistic abilities, while further losing its ability to understand the questions. To the best of our knowledge, this is the first work that models neurodegeneration with text data, compared to other works that operate in the computer vision domain. Finally, we draw similarities between our study and cognitive decline clinical studies involving test subjects. We find that with the application of neurodegenerative methods, LLMs lose abstract thinking abilities, followed by mathematical degradation, and ultimately, a loss in linguistic ability, responding to prompts incoherently. These findings are in accordance with human studies.
format Preprint
id arxiv_https___arxiv_org_abs_2403_10596
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Neural Erosion: Emulating Controlled Neurodegeneration and Aging in AI Systems
Alexos, Antonios
Tsai, Yu-Dai
Domingo, Ian
Pishgar, Maryam
Baldi, Pierre
Computation and Language
Artificial Intelligence
Neurons and Cognition
Creating controlled methods to simulate neurodegeneration in artificial intelligence (AI) is crucial for applications that emulate brain function decline and cognitive disorders. We use IQ tests performed by Large Language Models (LLMs) and, more specifically, the LLaMA 2 to introduce the concept of ``neural erosion." This deliberate erosion involves ablating synapses or neurons, or adding Gaussian noise during or after training, resulting in a controlled progressive decline in the LLMs' performance. We are able to describe the neurodegeneration in the IQ tests and show that the LLM first loses its mathematical abilities and then its linguistic abilities, while further losing its ability to understand the questions. To the best of our knowledge, this is the first work that models neurodegeneration with text data, compared to other works that operate in the computer vision domain. Finally, we draw similarities between our study and cognitive decline clinical studies involving test subjects. We find that with the application of neurodegenerative methods, LLMs lose abstract thinking abilities, followed by mathematical degradation, and ultimately, a loss in linguistic ability, responding to prompts incoherently. These findings are in accordance with human studies.
title Neural Erosion: Emulating Controlled Neurodegeneration and Aging in AI Systems
topic Computation and Language
Artificial Intelligence
Neurons and Cognition
url https://arxiv.org/abs/2403.10596