Psychological and physiological changes during isolation and confinement: I. Group dynamics and member interaction

Area of Science:

• Psychology
• Human Factors
• Spaceflight Research

Background:

• Long-term manned spaceflight requires understanding group dynamics in isolated, confined environments.
• Laboratory settings offer controlled variables for studying human behavior during confinement.
• Hyperbaric chambers provide an analogous environment to spaceflight for behavioral research.

Purpose of the Study:

• To investigate the onset and formation of group dynamics during isolation.
• To observe the functional development of groups in a controlled, confined setting.
• To analyze the emergence of subgroups and their reciprocal connections.

Main Methods:

• Utilized a hyperbaric chamber to simulate an isolated and confined environment.
• Employed five unfamiliar adult males (22-26 years old) as subjects.
• Conducted a 5-day isolation period with 2-day pre- and post-isolation phases.
• Recorded subject behavior and communication during physiological and psychological tasks.

Main Results:

• Observed the formation of a stable subgroup of three men by the third day of isolation.
• Identified strong reciprocal connections and stable bonds within the emerging subgroup.
• Documented the initial stages of group formation and interaction patterns.

Conclusions:

• Group formation, including subgroup emergence, can occur rapidly within a few days of isolation.
• The study highlights the potential for strong social bonds to form quickly in confined settings.
• Further research is needed to understand subgroup functioning within the larger group over extended periods.