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Classification of posture maintenance data with fuzzy clustering algorithms (Document No: 19920016187)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bezdek, James C. |
| Copyright Year | 1992 |
| Description | Sensory inputs from the visual, vestibular, and proprioreceptive systems are integrated by the central nervous system to maintain postural equilibrium. Sustained exposure to microgravity causes neurosensory adaptation during spaceflight, which results in decreased postural stability until readaptation occurs upon return to the terrestrial environment. Data which simulate sensory inputs under various sensory organization test (SOT) conditions were collected in conjunction with Johnson Space Center postural control studies using a tilt-translation device (TTD). The University of West Florida applied the fuzzy c-meams (FCM) clustering algorithms to this data with a view towards identifying various states and stages of subjects experiencing such changes. Feature analysis, time step analysis, pooling data, response of the subjects, and the algorithms used are discussed. |
| File Size | 1661962 |
| Page Count | 56 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920016187 |
| Archival Resource Key | ark:/13960/t6353k25k |
| Language | English |
| Publisher Date | 1992-01-31 |
| Access Restriction | Open |
| Subject Keyword | Computer Programming And Software Vestibules Cluster Analysis Physiological Effects Classifications Stability Central Nervous System Exposure Maintenance Identifying Space Flight Posture Algorithms Microgravity Adaptation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
