<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v2.0 20040830//EN" "journalpublishing.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="2.0" xml:lang="en" article-type="letter"><front><journal-meta><journal-id journal-id-type="nlm-ta">JMIR Hum Factors</journal-id><journal-id journal-id-type="publisher-id">humanfactors</journal-id><journal-id journal-id-type="index">6</journal-id><journal-title>JMIR Human Factors</journal-title><abbrev-journal-title>JMIR Hum Factors</abbrev-journal-title><issn pub-type="epub">2292-9495</issn><publisher><publisher-name>JMIR Publications</publisher-name><publisher-loc>Toronto, Canada</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">v13i1e110739</article-id><article-id pub-id-type="doi">10.2196/110739</article-id><article-categories><subj-group subj-group-type="heading"><subject>Letter to the Editor</subject></subj-group></article-categories><title-group><article-title>Authors&#x2019; Reply: Empathy Cuts Both Ways in Clinical AI</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name name-style="western"><surname>Bae</surname><given-names>Sang Won</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>Zhang</surname><given-names>Tongze</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>Chung</surname><given-names>Tammy</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="aff2">2</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>Dey</surname><given-names>Anind</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="aff3">3</xref></contrib></contrib-group><aff id="aff1"><institution>Department of Systems Engineering, Human-Computer Interaction and Human-Centered AI Systems Lab, AI for Healthcare Lab, Charles V. Schaefer, Jr. School of Engineering and Science, Stevens Institute of Technology</institution><addr-line>1 Castle Point Terrace</addr-line><addr-line>Hoboken</addr-line><addr-line>NJ</addr-line><country>United States</country></aff><aff id="aff2"><institution>Institute for Health, Healthcare Policy and Aging Research, Rutgers Biomedical and Health Sciences, Rutgers University</institution><addr-line>Newark</addr-line><addr-line>NJ</addr-line><country>United States</country></aff><aff id="aff3"><institution>Information School, University of Washington</institution><addr-line>Seattle</addr-line><addr-line>WA</addr-line><country>United States</country></aff><contrib-group><contrib contrib-type="editor"><name name-style="western"><surname>Schaffeler</surname><given-names>Andrea</given-names></name></contrib></contrib-group><author-notes><corresp>Correspondence to Sang Won Bae, PhD, Department of Systems Engineering, Human-Computer Interaction and Human-Centered AI Systems Lab, AI for Healthcare Lab, Charles V. Schaefer, Jr. School of Engineering and Science, Stevens Institute of Technology, 1 Castle Point Terrace, Hoboken, NJ, 07030, United States, 1 (201) 216-5687; <email>sbae4@stevens.edu</email></corresp></author-notes><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>2</day><month>10</month><year>2026</year></pub-date><volume>13</volume><elocation-id>e110739</elocation-id><history><date date-type="received"><day>29</day><month>08</month><year>2026</year></date><date date-type="accepted"><day>17</day><month>09</month><year>2026</year></date></history><copyright-statement>&#x00A9; Sang Won Bae, Tongze Zhang, Tammy Chung, Anind Dey. Originally published in JMIR Human Factors (<ext-link ext-link-type="uri" xlink:href="https://humanfactors.jmir.org">https://humanfactors.jmir.org</ext-link>), 2.10.2026. </copyright-statement><copyright-year>2026</copyright-year><license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Human Factors, is properly cited. The complete bibliographic information, a link to the original publication on <ext-link ext-link-type="uri" xlink:href="https://humanfactors.jmir.org">https://humanfactors.jmir.org</ext-link>, as well as this copyright and license information must be included.</p></license><self-uri xlink:type="simple" xlink:href="https://humanfactors.jmir.org/2026/1/e110739"/><related-article related-article-type="commentary article" ext-link-type="doi" xlink:href="https://humanfactors.jmir.org/2026/1/e89005" xlink:title="Comment on" xlink:type="simple">https://humanfactors.jmir.org/2026/1/e89005</related-article><related-article related-article-type="commentary article" ext-link-type="doi" xlink:href="10.2196/108778" xlink:title="Comment on" xlink:type="simple">https://humanfactors.jmir.org/2026/1/e108778</related-article><kwd-group><kwd>artificial intelligence</kwd><kwd>AI</kwd><kwd>clinical decision support systems</kwd><kwd>large language models</kwd><kwd>empathy</kwd><kwd>explainable AI</kwd><kwd>trust</kwd><kwd>human factors</kwd><kwd>reliance</kwd><kwd>human-AI interaction</kwd></kwd-group></article-meta></front><body><p>Sorin and Klang&#x2019;s Letter to the Editor [<xref ref-type="bibr" rid="ref1">1</xref>] regarding our evaluation [<xref ref-type="bibr" rid="ref2">2</xref>] of an empathic clinical decision support system raises an important distinction between perceived trust and objectively warranted reliance. Emotion-adaptive communication may make accurate advice easier to understand and accept, but it could also make inaccurate advice harder to question or reject [<xref ref-type="bibr" rid="ref1">1</xref>]. We agree that such communication should not indiscriminately increase acceptance of AI output.</p><p>Our study compared explanation delivery; it did not evaluate clinical effectiveness or appropriate reliance. The study&#x2019;s empathy-enhanced and basic conditions used the same cannabis-intoxication prediction and explainable AI pipeline; the empathic condition added affect sensing and emotion-adaptive delivery. We measured perceived usability, clarity, trustworthiness, and reliability&#x2014;not decision accuracy, error detection, reliance, or patient outcomes. Separately reported predictive-model performance therefore does not establish that the increase in perceived trust was warranted. Consistent with this measurement concern, Sorin et al&#x2019;s systematic review [<xref ref-type="bibr" rid="ref3">3</xref>] found that all but 1 of 12 studies assessed large language model empathy subjectively, underscoring the need for objective behavioral outcomes.</p><p>The relationships among accuracy, trust, and appropriate reliance require nuance to understand [<xref ref-type="bibr" rid="ref4">4</xref>]. Users may consult decision support because they cannot independently determine whether advice is correct. Their ability to evaluate recommendations varies with clinical expertise, AI literacy, case difficulty, prior beliefs, and confidence&#x2014;important considerations in our heterogeneous sample [<xref ref-type="bibr" rid="ref2">2</xref>]. Objective accuracy is necessary but not sufficient for trustworthy use. Accurate information may be underused when presented confusingly, too technically, or without sufficient context [<xref ref-type="bibr" rid="ref2">2</xref>]. Conversely, empathic delivery must not conceal uncertainty, weaken explanation fidelity, or make unsupported advice appear authoritative. Our design cannot determine whether higher trust reflected improved comprehension, persuasive delivery, or both.</p><p>Our study addressed the first communication barrier. We did not manipulate advice correctness; therefore, our data neither demonstrate nor rule out empathy-induced overreliance on AI-generated output. Participants reported that adaptation sometimes changed response focus or specificity, and we acknowledged the need for guardrails preserving clinical precision and explanation fidelity [<xref ref-type="bibr" rid="ref2">2</xref>]. The same concern applies when an underlying prediction or recommendation is inaccurate, because inaccurate AI advice can impair clinical judgment [<xref ref-type="bibr" rid="ref5">5</xref>].</p><p>Future studies should examine trust mechanisms beyond ratings. A useful design might, for example, vary advice correctness and communication style, hold the clinical scenario and evidentiary content constant across communication-style conditions, and assess effects across levels of clinician expertise. Outcomes could include objective comprehension, pre- and postadvice decisions, confidence calibration, verification behavior, acceptance of correct advice, rejection of incorrect advice, and both overreliance and underreliance on AI-generated output. Uncertainty communication and explanation fidelity also could be assessed.</p><p>Accordingly, our findings provide preliminary evidence that emotion-adaptive delivery can improve perceived clarity, usability, and trust; they do not establish improved decision accuracy or appropriate reliance. The goal should not be maximal perceived trust but warranted trust and appropriate reliance grounded in system performance, transparent uncertainty, faithful explanation, and users&#x2019; ability to interpret the evidence.</p></body><back><ack><p>GPT-5.6 Sol (OpenAI) was used for language editing. The authors take full responsibility for the content.</p></ack><notes><sec><title>Funding</title><p>This study was supported by the National Institute on Drug Abuse of the National Institutes of Health (U01DA056472 and R21 DA043181). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.</p></sec></notes><fn-group><fn fn-type="conflict"><p>None declared.</p></fn></fn-group><ref-list><title>References</title><ref id="ref1"><label>1</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Sorin</surname><given-names>V</given-names> </name><name name-style="western"><surname>Klang</surname><given-names>E</given-names> </name></person-group><article-title>Empathy cuts both ways in clinical Al</article-title><source>JMIR Hum Factors</source><year>2026</year><volume>13</volume><fpage>e108778</fpage><pub-id pub-id-type="doi">10.2196/108778</pub-id></nlm-citation></ref><ref id="ref2"><label>2</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Zhang</surname><given-names>T</given-names> </name><name name-style="western"><surname>Bae</surname><given-names>SW</given-names> </name><name name-style="western"><surname>Chung</surname><given-names>T</given-names> </name><name name-style="western"><surname>Dey</surname><given-names>AK</given-names> </name></person-group><article-title>Emotion-adaptive large language model-driven clinical decision support: user evaluation of the empathic clinical decision support system framework for trust and explainability</article-title><source>JMIR Hum Factors</source><year>2026</year><month>05</month><day>22</day><volume>13</volume><fpage>e89005</fpage><pub-id pub-id-type="doi">10.2196/89005</pub-id><pub-id pub-id-type="medline">42172616</pub-id></nlm-citation></ref><ref id="ref3"><label>3</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Sorin</surname><given-names>V</given-names> </name><name name-style="western"><surname>Brin</surname><given-names>D</given-names> </name><name name-style="western"><surname>Barash</surname><given-names>Y</given-names> </name><etal/></person-group><article-title>Large language models and empathy: systematic review</article-title><source>J Med Internet Res</source><year>2024</year><month>12</month><day>11</day><volume>26</volume><fpage>e52597</fpage><pub-id pub-id-type="doi">10.2196/52597</pub-id><pub-id pub-id-type="medline">39661968</pub-id></nlm-citation></ref><ref id="ref4"><label>4</label><nlm-citation citation-type="book"><person-group person-group-type="author"><name name-style="western"><surname>Schemmer</surname><given-names>M</given-names> </name><name name-style="western"><surname>Kuehl</surname><given-names>N</given-names> </name><name name-style="western"><surname>Benz</surname><given-names>C</given-names> </name><name name-style="western"><surname>Bartos</surname><given-names>A</given-names> </name><name name-style="western"><surname>Satzger</surname><given-names>G</given-names> </name></person-group><article-title>Appropriate reliance on AI advice: conceptualization and the effect of explanations</article-title><source>IUI &#x2019;23: Proceedings of the 28th International Conference on Intelligent User Interfaces</source><year>2023</year><publisher-name>Association for Computing Machinery</publisher-name><fpage>410</fpage><lpage>422</lpage><pub-id pub-id-type="doi">10.1145/3581641.3584066</pub-id></nlm-citation></ref><ref id="ref5"><label>5</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Gaube</surname><given-names>S</given-names> </name><name name-style="western"><surname>Suresh</surname><given-names>H</given-names> </name><name name-style="western"><surname>Raue</surname><given-names>M</given-names> </name><etal/></person-group><article-title>Do as AI say: susceptibility in deployment of clinical decision-aids</article-title><source>NPJ Digit Med</source><year>2021</year><month>02</month><day>19</day><volume>4</volume><issue>1</issue><fpage>31</fpage><pub-id pub-id-type="doi">10.1038/s41746-021-00385-9</pub-id><pub-id pub-id-type="medline">33608629</pub-id></nlm-citation></ref></ref-list></back></article>