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Main Authors: Patel, Ameen, Lee, Felix, Liang, Kyle, Thomas, Joseph
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.07369
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author Patel, Ameen
Lee, Felix
Liang, Kyle
Thomas, Joseph
author_facet Patel, Ameen
Lee, Felix
Liang, Kyle
Thomas, Joseph
contents Emotional prompting - the use of specific emotional diction in prompt engineering - has shown increasing promise in improving large language model (LLM) performance, truthfulness, and responsibility. However these studies have been limited to single types of positive emotional stimuli and have not considered varying degrees of emotion intensity in their analyses. In this paper, we explore the effects of four distinct emotions - joy, encouragement, anger, and insecurity - in emotional prompting and evaluate them on accuracy, sycophancy, and toxicity. We develop a prompt-generation pipeline with GPT-4o mini to create a suite of LLM and human-generated prompts with varying intensities across the four emotions. Then, we compile a "Gold Dataset" of prompts where human and model labels align. Our empirical evaluation on LLM behavior suggests that positive emotional stimuli lead to more accurate and less toxic results, but also increase sycophantic behavior.
format Preprint
id arxiv_https___arxiv_org_abs_2604_07369
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle The Role of Emotional Stimuli and Intensity in Shaping Large Language Model Behavior
Patel, Ameen
Lee, Felix
Liang, Kyle
Thomas, Joseph
Machine Learning
Artificial Intelligence
Emotional prompting - the use of specific emotional diction in prompt engineering - has shown increasing promise in improving large language model (LLM) performance, truthfulness, and responsibility. However these studies have been limited to single types of positive emotional stimuli and have not considered varying degrees of emotion intensity in their analyses. In this paper, we explore the effects of four distinct emotions - joy, encouragement, anger, and insecurity - in emotional prompting and evaluate them on accuracy, sycophancy, and toxicity. We develop a prompt-generation pipeline with GPT-4o mini to create a suite of LLM and human-generated prompts with varying intensities across the four emotions. Then, we compile a "Gold Dataset" of prompts where human and model labels align. Our empirical evaluation on LLM behavior suggests that positive emotional stimuli lead to more accurate and less toxic results, but also increase sycophantic behavior.
title The Role of Emotional Stimuli and Intensity in Shaping Large Language Model Behavior
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2604.07369