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Development of an Objective Behavioral Assay of Cohesion to Enhance Composition, Task Performance, and Psychosocial Adaptation in Long-Term Work Groups (Work_Groups)
Principal Investigator
Research Area:
Behavior and performance
Species Studied
Scientific Name: Homo sapiens Species: Human

The overarching goal of this study was to generate experimentally-derived insights on how crew composition and trait-like cooperative motivation predict task cohesion, social cohesion, and biopsychosocial adaptation in long-term work groups through systematic ground-based research and development of a simple, rapid, and objective behavioral assay of implicit propensity toward cooperation, productivity, and fairness.

This study had the following specific aims:

  1. Investigate effects of group composition on voluntary cooperation.
  2. Investigate effects of crew composition on performance, task cohesion, social cohesion, and psychosocial adaptation in long-term work groups.
  3. Develop next-generation Task Performance Task (TPT) software.
  4. Extended long-term research of group cohesion, team performance, and biopsychosocial adaptation to several space analog environments; the Human Exploration Research Analog (HERA) facility, NASA's Extreme Environment Mission Operations (NEEMO) laboratory, and the investigator's laboratory using Planetary Exploration Simulation (PES).

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Hursh SR and Roma PG. Behavioral economics and the analysis of consumption and choice. Managerial and Decision Economics. May 18, 2015. [DOI]

Roma PG, Hursh SR, and Hudja S. Hypothetical purchase task questionnaires for behavioral economic assessments of value and motivation. Managerial and Decision Economics. May 18, 2015. [DOI]

Task performance and analysis

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Data Information
Data Availability
Archive is complete. Data sets are not publicly available but can be requested.
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Circadian misalignment
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Ground 05/01/2009 In Progress
HERA Campaign 1 02/27/2014 09/11/2014 Four 7-day missions
HERA Campaign 2 01/30/2015 08/27/2015 Four 14-day missions
NEEMO 18 07/21/2014 07/29/2014 9 days

Human Research Program (HRP) Human Research Roadmap (HRR) Information
Crew health and performance is critical to successful human exploration beyond low Earth orbit. The Human Research Program (HRP) investigates and mitigates the highest risks to human health and performance, providing essential countermeasures and technologies for human space exploration. Risks include physiological and performance effects from hazards such as radiation, altered gravity, and hostile environments, as well as unique challenges in medical support, human factors, and behavioral health support. The HRP utilizes an Integrated Research Plan (IRP) to identify the approach and research activities planned to address these risks, which are assigned to specific Elements within the program. The Human Research Roadmap is the web-based tool for communicating the IRP content.

The Human Research Roadmap is located at:

+ Click here for information of how this experiment is contributing to the HRP's path for risk reduction.

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Eric Gallagher
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
Proposal Date
Proposal Source
2011 Crew Health NNJ11ZSA002NA