Respiratory Rate

Publication Title: 
Emotion (Washington, D.C.)

Although dozens of studies have examined the autonomic nervous system (ANS) aspects of negative emotions, less is known about ANS responding in positive emotion. An evolutionary framework was used to define five positive emotions in terms of fitness-enhancing function, and to guide hypotheses regarding autonomic responding. In a repeated measures design, participants viewed sets of visual images eliciting these positive emotions (anticipatory enthusiasm, attachment love, nurturant love, amusement, and awe) plus an emotionally neutral state.

Author(s): 
Shiota, Michelle N.
Neufeld, Samantha L.
Yeung, Wan H.
Moser, Stephanie E.
Perea, Elaine F.
Publication Title: 
Explore (New York, N.Y.)

OBJECTIVE: Compassion is critical for complementary and conventional care, but little is known about its direct physiologic effects. This study tested the feasibility of delivering two lengths of time (10 and 20 minutes) and two strategies (tactile and nontactile) for a practitioner to nonverbally communicate compassion to subjects who were blind to the interventions. METHODS: Healthy volunteers were informed that we were testing the effects of time and touch on the autonomic nervous system.

Author(s): 
Shaltout, Hossam A.
Tooze, Janet A.
Rosenberger, Erica
Kemper, Kathi J.
Publication Title: 
Journal of Alternative and Complementary Medicine (New York, N.Y.)

OBJECTIVES: Previous studies have shown that grounding produces quantifiable physiologic changes. This study was set up to reproduce and expand earlier electrophysiologic and physiologic parameters measured immediately after grounding with improved methodology and state-of-the-art equipment. DESIGN AND SUBJECTS: A multiparameter double-blind experiment was conducted with 14 men and 14 women (age range: 18-80) in relatively good health. Subjects were screened for health problems using a commonly used health questionnaire.

Author(s): 
Chevalier, Gaétan
Publication Title: 
Journal of obstetric, gynecologic, and neonatal nursing: JOGNN / NAACOG

OBJECTIVE: To examine physiologic and psychologic effects of hypnosis in healthy women. DESIGN: Quasi-experimental, within-subject, repeated measures. SETTING: Private laboratory setting in an urban Midwestern College of Nursing. PARTICIPANTS: Convenience sample of 30 healthy, female volunteers who were nonpregnant, predominantly White, college students. METHOD: Participants listened to a 30-minute recording of relaxing, affirming hypnotic suggestions while sitting comfortably in a recliner. Hypnotizability and trait anxiety were measured at baseline.

Author(s): 
VandeVusse, Leona
Hanson, Lisa
Berner, Margaret A.
White Winters, Jill M.
Publication Title: 
The International Journal of Clinical and Experimental Hypnosis

Hypnosis can be seen as a guided induction of various states of consciousness. This article details a time-series analysis that visualized the electrophysiological state changes during a session as a correlate to the instructions. Sixty-four channels of EEG and peripheral physiological measures were recorded in 1 highly susceptible subject. Significant state changes occurred synchronously with specific induction instructions. Some patterns could be physiologically explained, such as sensorimotor desynchronization over the right hemispheric hand area during left arm levitation.

Author(s): 
Hinterberger, Thilo
Schoner, Julian
Halsband, Ulrike
Publication Title: 
Veterinary Anaesthesia and Analgesia

OBJECTIVE: To assess the effect of halothane (H), isoflurane (I) or sevoflurane (S) on the bispectral index (BIS), and the effect of the addition of meperidine in dogs subjected to ovariohysterectomy. STUDY DESIGN: Prospective, randomized, blinded, clinical trial. ANIMALS: Forty-eight female mixed-breed dogs, with weights varying from 10 to 25 kg. METHODS: All dogs were premedicated with acepromazine (A) (0.1 mg kg(-1) IM) or A and meperidine (M) (3 mg kg(-1) IM) and they were divided into six groups of eight animals (AH, AMH, AI, AMI, AS, and AMS).

Author(s): 
de Mattos-Junior, Ewaldo
Ito, Kelly C.
Conti-Patara, Andreza
de Carvalho, Haley da Silva
Reinoldes, Adriane
Caldeira, Juliana de Araújo
Cortopassi, Silvia R. G.
Publication Title: 
Natural Product Communications

The aim of this study was to investigate the effect of aromatherapy massage with jasmine oil (Jasminum sambac L., Oleaceae) on humans. Human autonomic parameters, i.e. blood pressure, pulse rate, blood oxygen saturation, breathing rate, and skin temperature, were recorded as indicators of the arousal level of the autonomic nervous system. In addition, subjects had to rate their emotional condition in terms of relaxation, vigor, calmness, attentiveness, mood, and alertness in order to assess subjective behavioral arousal. Forty healthy volunteers participated in the experiments.

Author(s): 
Hongratanaworakit, Tapanee
Publication Title: 
Burns: Journal of the International Society for Burn Injuries

OBJECTIVE: This observational pilot study investigated effects of aromatherapy massage in paediatric burn patients. METHODS: The setting was a 17 beds level I burn unit in Cape Town, South Africa. Between January and October 2009 heart rates and respiratory rates of patients who underwent aromatherapy massage sessions were read before and after the sessions. Primary outcomes were decline in heart rates and respiratory rates, a sign of relaxation. Behavioural responses (sleep/awake state, facial expression, body posture) were documented as secondary outcomes.

Author(s): 
O'Flaherty, Linda-Anne
Van Dijk, Monique
Albertyn, Rene
Millar, Alastair
Rode, Heinz
Publication Title: 
Respiratory Physiology & Neurobiology

Slow deep breathing (SDB) has a therapeutic effect on autonomic tone. Our previous studies suggested that coupling of the cardiovascular to the respiratory system mediates plasticity expressed in sympathetic nerve activity. We hypothesized that SDB evokes short-term plasticity of cardiorespiratory coupling (CRC). We analyzed respiratory frequency (fR), heart rate and its variability (HR&HRV), the power spectral density (PSD) of blood pressure (BP) and the ventilatory pattern before, during, and after a 20-min epoch of SDB.

Author(s): 
Dick, Thomas E.
Mims, Joseph R.
Hsieh, Yee-Hsee
Morris, Kendall F.
Wehrwein, Erica A.
Publication Title: 
Journal of Alternative and Complementary Medicine (New York, N.Y.)

OBJECTIVES: In ancient yoga texts there are two meditative states described. One is dharana, which requires focusing, the second is dhyana, during which there is no focusing, but an expansive mental state is reached. While an earlier study did show improved performance in an attention task after dharana, the autonomic changes during these two states have not been studied. METHODS: Autonomic and respiratory variables were assessed in 30 healthy male volunteers (group mean age ± SD, 29.1 ± 5.1 years) during four mental states described in traditional yoga texts.

Author(s): 
Telles, Shirley
Raghavendra, Bhat Ramachandra
Naveen, Kalkuni Visweswaraiah
Manjunath, Nandi Krishnamurthy
Kumar, Sanjay
Subramanya, Pailoor

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