Performance Assessment of ChatGPT vs Bard in Detecting Alzheimer's Dementia

Large language models (LLMs) find increasing applications in many fields. Here, three LLM chatbots (ChatGPT-3.5, ChatGPT-4 and Bard) are assessed - in their current form, as publicly available - for their ability to recognize Alzheimer's Dementia (AD) and Cognitively Normal (CN) individuals using textual input derived from spontaneous speech recordings. Zero-shot learning approach is used at two levels of independent queries, with the second query (chain-of-thought prompting) eliciting more detailed than the first. Each LLM chatbot's performance is evaluated on …

alzheimer's applications assessment bard chatbots chatgpt chatgpt-3.5 chatgpt-4 cs.ai cs.cl current dementia fields form language language models large language large language models llm llm chatbots llms normal performance speech textual