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Traumatic Memory

Traumatic Memory

Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...

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Transactive Memory Systems and Hospital Trauma Team Performance: Shared Experience in Action Teams.

Linda Argote¹, Jerry Guo², Ki-Won Haan³

¹Tepper School of Business, Carnegie Mellon University.

Organization Science (Providence, R.I.)

|December 15, 2025

Summary

This summary is machine-generated.

Trauma teams with strong transactive memory systems (TMS) improve patient outcomes. Enhanced team experience and TMS significantly reduce hospital and intensive care unit lengths of stay, demonstrating a large impact on patient recovery.

Keywords:

action teams health care teams shared experience team performance transactive memory systems video recordings

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Area of Science:

Medical research
Organizational psychology
Team dynamics

Background:

Effective teamwork is crucial in high-stakes environments like trauma care.
Transactive memory systems (TMS) are theoretical mechanisms linking shared knowledge to team performance.
Understanding how team experience influences TMS and patient outcomes is essential.

Purpose of the Study:

To test the theoretical mechanism linking shared team experience and team performance via TMS.
To investigate the impact of TMS on patient outcomes in severe acute traumatic injury care.
To determine if team experience predicts TMS strength beyond individual experience.

Main Methods:

Behavioral indicators of TMS were coded from video recordings of trauma resuscitations.
Objective measures of team performance (patient lengths of stay) were obtained from hospital records.
Data from 121 patients treated by trauma teams were analyzed.

Main Results:

Patients treated by trauma teams with strong TMS had significantly shorter ICU and hospital lengths of stay.
A one standard deviation increase in TMS was associated with a 3.3-day reduction in hospital stay and a 1.9-day reduction in ICU stay.
Team experience predicted TMS strength, and TMS mediated the effect of team experience on performance.

Conclusions:

Strong transactive memory systems significantly improve patient outcomes in trauma care.
Team experience is a critical factor in developing robust TMS.
Findings have implications for strengthening TMS in trauma teams and advancing theories on organizational learning.