Task Assessment of Operator Proficiency Following Long-Duration Spaceflight (Moore) (Completed)
Last Published:  07/30/20 02:45:15 PM (Central)
Short Title: Manual Control - Moore
Responsible HRP Element: Human Health Countermeasures
Collaborating Org(s):
Research Operations and Integration (ROI)
Funding Status: Completed - Task completed and produced a deliverable
Procurement Mechanism(s):


Sensorimotor adaptation to the relative absence of gravity on orbit is thought to be responsible for a range of sensorimotor deficits (postural, locomotor, oculomotor, perception of motion) observed in astronauts post-landing. Long-term exposure to microgravity has the potential to negatively impact the ability of crew members to navigate and control a landing vehicle and perform post-landing surface operations for exploration class missions. This goal of this study is to objectively define the effects of long-duration spaceflight on operator proficiency, and identify microgravity-related sensorimotor and/or cognitive deficits underlying degradation of operator effectiveness.

Specific Aims

The Specific Aims of this pre- and post-flight study include: 1) assess changes in cognitive, oculomotor, fine motor, and vestibular mechanisms potentially underlying post-flight deficits in operator performance, and 2) assess changes in astronaut performance on four operationally-relevant simulator tasks: control of an automobile, teleoperation of a robotic arm, T-38A Talon landing, and operation of rover docking.


The methods include a comparison of pre-flight (x4 sessions) and post-flight (R+1, +4 and +8 days) measurements obtained on seated ISS crew members using both the physiological test battery (30 min/session) and manual control simulations (60 min/session). In addition, this study will obtain subjective and objective measures of sleepiness and fatigue that will be used to assess the cumulative effects of in-flight sleep deprivation and workload on post-flight sensorimotor and operator function.

Expected Results

The expected results will include a quantitative assessment of acute changes in sensorimotor function and simulator performance, and the time course of recovery following long-duration space flight. This task will address the gap by correlating individual changes in sensorimotor function with changes in operator performance on manual control tasks.

The following task book entry also supports the Manual Control Task:
Effect of Sensorimotor Adaptation Following Long-Duration Spaceflight on Perception and Control of Vehicular Motion (Wood)

This task informs BHP gaps: BMed3 and Sleep2.