Aerospace medicine and biology: A continuing bibliography with indexes, supplement 203

This bibliography lists 150 reports, articles, and other documents introduced into the NASA scientific and technical information system in January 1980

Aerospace Medicine and Biology: A continuing bibliography with indexes, supplement 144

This bibliography lists 257 reports, articles, and other documents introduced into the NASA scientific and technical information system in July 1975

The impact of music tuned to 432 Hz on human behaviour: A Systematic Review

openMusic has always held an important role in human society. Scientist have explored its therapeutic possibilities on multiple occasions, and music proved itself as a very effective tool in in numerous areas. This article aims to review available research focusing on the recent phenomenon of 432 Hz music and its potential beneficial effects. This review represents the first attempt at analysing the results of scientific research on this tuning. Electronic databases were searched for articles on the topic, and thirteen entries were included in the systematic review after full-text assessment. The results presented a mixed picture, and a clear understanding of the effects of 432 Hz could not be reached due to several limitations. Further research is needed to better evaluate 432 Hz effectiveness as a potential non-invasive therapeutic aid.Music has always held an important role in human society. Scientist have explored its therapeutic possibilities on multiple occasions, and music proved itself as a very effective tool in in numerous areas. This article aims to review available research focusing on the recent phenomenon of 432 Hz music and its potential beneficial effects. This review represents the first attempt at analysing the results of scientific research on this tuning. Electronic databases were searched for articles on the topic, and thirteen entries were included in the systematic review after full-text assessment. The results presented a mixed picture, and a clear understanding of the effects of 432 Hz could not be reached due to several limitations. Further research is needed to better evaluate 432 Hz effectiveness as a potential non-invasive therapeutic aid

Similarity based hierarchical clustering of physiological parameters for the identification of health states - a feasibility study

This paper introduces a new unsupervised method for the clustering of physiological data into health states based on their similarity. We propose an iterative hierarchical clustering approach that combines health states according to a similarity constraint to new arbitrary health states. We applied method to experimental data in which the physical strain of subjects was systematically varied. We derived health states based on parameters extracted from ECG data. The occurrence of health states shows a high temporal correlation to the experimental phases of the physical exercise. We compared our method to other clustering algorithms and found a significantly higher accuracy with respect to the identification of health states.Comment: 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC

Respiratory Sinus Arrhythmia as an Index of Vagal Activity during Stress in Infants: Respiratory Influences and Their Control

Respiratory sinus arrhythmia (RSA) is related to cardiac vagal outflow and the respiratory pattern. Prior infant studies have not systematically examined respiration rate and tidal volume influences on infant RSA or the extent to which infants' breathing is too fast to extract a valid RSA. We therefore monitored cardiac activity, respiration, and physical activity in 23 six-month old infants during a standardized laboratory stressor protocol. On average, 12.6% (range 0–58.2%) of analyzed breaths were too short for RSA extraction. Higher respiration rate was associated with lower RSA amplitude in most infants, and lower tidal volume was associated with lower RSA amplitude in some infants. RSA amplitude corrected for respiration rate and tidal volume influences showed theoretically expected strong reductions during stress, whereas performance of uncorrected RSA was less consistent. We conclude that stress-induced changes of peak-valley RSA and effects of variations in breathing patterns on RSA can be determined for a representative percentage of infant breaths. As expected, breathing substantially affects infant RSA and needs to be considered in studies of infant psychophysiology

Doctor of Philosophy

dissertationRecent theory and research on psychophysiological aspects of self-regulation emphasizes the central role of resting respiratory sinus arrhythmia (RSA), an index of parasympathetic nervous system functioning. Within the context of close relationships, resting RSA may index an individual's self-regulatory capacity to manage affect associated with interpersonal interactions. In the laboratory, RSA was measured during a 10-minute resting baseline and participants completed measures of relationship quality. Partners were emailed a link to complete an online measure of relationship quality. Following the laboratory sessions, participants were prompted (using experience sampling methodology) to provide ratings of their affect during interactions with a romantic partner throughout a day. Resting RSA was correlated with partner reports of conflict in the relationship but not participant ratings of relationship quality. Multilevel models revealed a positive association between resting RSA and reports of calm and relaxed affect during social interactions with a romantic partner. Resting RSA was negatively associated with upset and angry affect during interactions with a romantic partner. These findings suggest that resting RSA may influence affect regulation during social interactions with a romantic partner and may have implications for understanding processes key to self-regulation and health

Aerospace medicine and biology: A continuing bibliography with indexes, supplement 130, July 1974

This special bibliography lists 291 reports, articles, and other documents introduced into the NASA scientific and technical information system in June 1974