Lauren Kennedy-Metz

Lauren Kennedy-Metz
Roanoke College · Psychology

PhD

About

32
Publications
3,089
Reads
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187
Citations
Citations since 2017
30 Research Items
186 Citations
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Education
August 2014 - October 2018
Virginia Tech (Virginia Polytechnic Institute and State University)
Field of study
  • Translational Biology, Medicine, and Health (concentration in Neuroscience)

Publications

Publications (32)
Article
Cognitive workload data of members of the cardiac surgery team can be measured intraoperatively and stored for later analysis. We present a case of a near-miss (medication error) that underwent root cause analysis using workload data. Heart rate variability data, representing workload levels, were collected from the attending surgeon, attending ane...
Article
Cognitive Engineering is focused on how humans can cope and master the complexity of processes and technological environments. In cardiothoracic surgery, the goal is to support safe and effective human performance by preventing medical errors. Strategies derived from cognitive engineering research could be introduced in cardiothoracic surgery pract...
Article
Full-text available
Background. The most commonly used subjective assessment of perceived cognitive load, the NASA Task Load Index (TLX), has proven valuable in measuring individual load among general populations. The surgery task load index (SURG-TLX) was developed and validated to measure cognitive load specifically among individuals within a surgical team. Notably,...
Article
Full-text available
Monitoring healthcare providers' cognitive workload during surgical procedures can provide insight into the dynamic changes of mental states that may affect patient clinical outcomes. The role of cognitive factors influencing both technical and non-technical skill are increasingly being recognized, especially as the opportunities to unobtrusively c...
Article
Effectiveness of computer vision techniques has been demonstrated through a number of applications, both within and outside healthcare. The operating room environment specifically is a setting with rich data sources compatible with computational approaches and high potential for direct patient benefit. The aim of this review is to summarize major t...
Conference Paper
Excessive intra-operative noise in cardiac surgery has the potential to serve as source of distraction and additional cognitive workload for the surgical team, and may interfere with optimal performance. The separation from bypass phase is a technically complex phase of surgery, making it highly susceptible to communication breakdowns due to high c...
Conference Paper
Situational awareness (SA) at both individual and team levels, plays a critical role in the operating room (OR). During the pre-incision time-out, the entire OR team comes together to deploy the surgical safety checklist (SSC). Worldwide, the implementation of the SSC has been shown to reduce intraoperative complications and mortality among surgica...
Chapter
Several studies have reported low adherence and high resistance from clinicians to adopt digital health technologies into clinical practice, particularly the use of computer-based clinical decision support systems. Poor usability and lack of integration with the clinical workflow have been identified as primary issues. Few guidelines exist on how t...
Article
Objective Our primary aim was to investigate crew performance during medical emergencies with and without ground-support from a flight surgeon located at mission control. Background There are gaps in knowledge regarding the potential for unanticipated in-flight medical events to affect crew health and capacity, and potentially compromise mission s...
Conference Paper
Full-text available
The cardiac surgery operating room (OR) is a complex sociotechnical environment requiring the seamless integration of human-human and human-machine teams. Perfusionists in particular play a critical role in ensuring patient stability by operating the cardiopulmonary bypass (CPB) machine. Goal-directed perfusion (GDP) (oxygen delivery [DO2] ≥ 280 mL...
Article
The cardiac surgery operating room is a high-risk and complex environment in which multiple experts work as a team to provide safe and excellent care to patients. During the cardiopulmonary bypass phase of cardiac surgery, critical decisions need to be made and the perfusionists play a crucial role in assessing available information and taking a ce...
Article
Objective: Evaluate how emotional intelligence (EI) has been measured among surgeons and to investigate interventions implemented for improving EI. Summary background: EI has relevant applications in surgery given its alignment with non-technical skills. In recent years, EI has been measured in a surgical context to evaluate its relationship wit...
Article
While the influence of surgical flow disruptions (SFDs) on surgical performance has been observed in live cardiovascular surgery and their influence on cognitive workload has been evaluated in high-fidelity simulations, the relationship between SFDs and cognitive workload of surgical providers in the live cardiac surgery operating room has yet to b...
Conference Paper
Full-text available
Shared mental models are critical to team success; however, in practice, team members may have misaligned models due to a variety of factors. In safety-critical domains (e.g., aviation, healthcare), lack of shared mental models can lead to preventable errors and harm. Towards the goal of mitigating such preventable errors, here, we present a Bayesi...
Article
Shared mental models are critical to team success; however, in practice, team members may have misaligned models due to a variety of factors. In safety-critical domains (e.g., aviation, healthcare), lack of shared mental models can lead to preventable errors and harm. Towards the goal of mitigating such preventable errors, here, we present a Bayesi...
Conference Paper
Full-text available
Surgical time-outs are designed to promote situation awareness, teamwork, and error prevention. The pre-incision time-out in particular aims to facilitate shared mental models prior to incision. Objective, unbiased measures to confirm its effectiveness are lacking. We hypothesized that providers' mental workload would reveal team psychophysiologica...
Preprint
Shared mental models are critical to team success; however, in practice, team members may have misaligned models due to a variety of factors. In safety-critical domains (e.g., aviation, healthcare), lack of shared mental models can lead to preventable errors and harm. Towards the goal of mitigating such preventable errors, here, we present a Bayesi...
Article
Objective This novel preliminary study sought to capture dynamic changes in heart rate variability (HRV) as a proxy for cognitive workload among perfusionists while operating the cardiopulmonary bypass (CPB) pump during real-life cardiac surgery. Background Estimations of operators’ cognitive workload states in naturalistic settings have been deri...
Chapter
Full-text available
Cardiac surgery is one of the most complex specialties in medicine, akin to a complex sociotechnical system. Patient outcomes are vulnerable to surgical flow disruptions (SFDs), a source of preventable harm. Healthcare providers’ (HCPs) sympathetic activation secondary to emotional states represent an underappreciated source of SFDs. This study’s o...
Article
Objective Mirrored psychophysiological change in cognitive workload indices may reflect shared mental models and effective healthcare team dynamics. In this exploratory analysis, we investigated the frequency of mirrored changes, defined as concurrent peaks in heart rate variability (HRV) across team members, during cardiac surgery. Design Objecti...
Conference Paper
Full-text available
Cardiac surgery represents a complex sociotechnical environment relying on a combination of technical and non-technical team-based expertise. Surgical flow disruptions (SFDs) may be influenced by a variety of sources, including social, environmental, and emotional factors affecting healthcare providers (HCPs). Many of these factors can be readily o...
Conference Paper
Full-text available
Surgical processes are rapidly being adapted to address the COVID-19 pandemic, with changes in procedures and responsibilities being made to protect both patients and medical teams. These process changes put new cognitive demands on the medical team and increase the likelihood of miscommunication, lapses in judgment, and medical errors. We describe...
Article
Full-text available
Healthcare providers often perform under significant stress, during which their performance must be optimal, but is known to suffer. Stress management interventions in this context can provide cognitive support to rescue performance. This exploratory study sought to evaluate the effect of stress intervention components on stress and performance whi...
Conference Paper
Full-text available
The cardiac operating room (OR) is a high-risk environment where several specialized providers work as team to provide care for patients undergoing complex surgical pro-cedures. Cardiac surgery can be conceptualized as a team-based sociotechnical system with critical requirements for communication and coordination. Contemporary research in this rea...
Article
Full-text available
Inappropriate management of acute stress can negatively affect cognition and task performance. Frequently occurring acute stress encounters can lead to cardiovascular and immunity deficiencies, and psychological disorders such as depression, fatigue, and burnout. Biofeedback can be used as a non-invasive, passive, continuous method of managing stre...
Article
Full-text available
Individual performance on complex healthcare tasks can be influenced by acutely stressful situations. Real-time biofeedback using passive physiological monitoring may help to better understand an individual’s progression towards acute stress-induced performance decrement. Providing biofeedback at an appropriate time may provide learners within an i...
Article
Full-text available
Physiological data collection methods are unobtrusive, passive, continuous, and objective. The information afforded by sensors collecting physiological data can be transformed to represent operator performance estimates and stress state visualizations in real time. This technology is conducive to healthcare settings, creating the potential to infor...
Conference Paper
Full-text available
The purpose of this project was to adapt an existing computer-based task called Multi-Attribute Task Battery (MATB-II), developed by NASA and frequently used to induce acute stress among air craft crew members and general populations, for use in medical populations. We gathered continuous electrocardiography (ECG) data while medical students comple...
Conference Paper
Full-text available
The purpose of this project was to inform the presentation timing of coping strategies during an acutely stressful task, to be integrated into a visual real-time biofeedback display for stress management. We gathered skin temperature, electrocardiography, and electroencephalography data, and presented a coping instruction on various time schedules...
Article
Full-text available
Along with self-reported emotional reactions, changes in brain activity occur when someone is exposed to emotionally-charged images related to pleasure and disgust, such as baby animals and flesh wounds. Previous studies have shown that event-related potentials (ERPs) are enhanced separately by emotional pictures and emotional words, but none have...

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Projects

Project (1)
Project
Use lab-based methods to induce stress while eliciting key areas of cognitive processing to analyze how physiology, perceptions of stress, and task performance change under various conditions and types of feedback.