Nasal airflow and brain activity: is there a link?

@article{Price2016NasalAA,
  title={Nasal airflow and brain activity: is there a link?},
  author={A Price and Ronald Eccles},
  journal={The Journal of Laryngology \&\#x0026; Otology},
  year={2016},
  volume={130},
  pages={794 - 799}
}
  • A. Price, R. Eccles
  • Published 1 August 2016
  • Medicine
  • The Journal of Laryngology & Otology
Abstract Background: Over the past few decades, evidence has emerged suggesting that nasal airflow asymmetry and brain asymmetry are linked. The nose exhibits asymmetrical airflow, with the dominant airflow alternating from one nasal passage to the other over a period of hours. Some authors have suggested a correlation between cerebral hemisphere dominance and nostril dominance. Others have proposed an association between rhythmic fluctuations in nasal airflow and corresponding fluctuations in… 
The effect of unilateral forced nostril breathing on sleep in healthy right-handed men: a preliminary report
TLDR
The result supports that nasal obstructions, due to deviations, concha hypertrophy, or congestion/decongestion, might affect the physiology of respiration and sleep and should be taken into consideration when evaluating patients in sleep laboratories.
The nasal cycle 122 years on – are we any wiser?
TLDR
A study in this month’s issue concludes that tumour stage is an important determining factor affecting prognosis in surgically treated patients with early-stage lip cancer for whom a ‘watch and wait’ policy for neck status has been implemented.
Effect of Unilateral Left Nostril Breathing (Chandra Anga Pranayama) on Cognitive Function in Healthy Yoga-Naïve Individuals: A Randomized, Controlled, Pilot Study
TLDR
This study showed no difference in the effects of 15-min practice of ULNB and breath awareness on cognitive functions; both improved memory but not attention or executive function.
Fluctuations of consciousness, mood, and science: The interhemispheric switch and sticky switch models two decades on
TLDR
This article overviews a set of interrelated neuroscientific and clinical hypotheses, models, experiments, and predictions with which I have been involved for the last two decades, and describes lessons learned from Pettigrew on how perspectives in science exhibit their own fluctuations, ironically like the very phenomena on which the authors worked.
Psychophysiological responses to various slow, deep breathing techniques.
TLDR
Overall, among the four tested deep breathing techniques, loaded breathing was associated with enhanced cardiovascular effects and pursed-lips breathing with better emotional responses, while also enhancing cardiovascular effects (albeit less than loaded breathing).
Pranayamas and Their Neurophysiological Effects
TLDR
In-depth studies focusing on specific aspects of the practices such as retentions, prolonged expiration, attention on fluid respiration, and abdominal/thoracic respiration should better elucidate the effects of Yogic Breathing Techniques (YBT).
Sleep and Plasticity: Do We Consolidate Memories Separately in Each Hemisphere?
  • B. Rasch
  • Medicine, Biology
    Current Biology
  • 2020
During sleep, our memories are spontaneously reactivated and consolidated. Now it seems that we can influence these reactivations in specific locations of our brain, for example, by sniffing
Judgements of attractiveness of the opposite sex and nostril differences in self-rated mood: The effects of androstenol
TLDR
Androstenol made male participants feel more lively, and both male and female participants more sexy, when sniffed through the right compared with the left nostril, and participants rated themselves as more irritable and aggressive when exposed to androstanol through the left Nostril.

References

SHOWING 1-10 OF 67 REFERENCES
Activating Effect of Nasal and Oral Hyperventilation on Epileptic Electrographic Phenomena: Reflex Mechanisms of Nasal Origin
TLDR
It was demonstrated in studies of lower vertebrates (frogs and turtles) that airflow through the nasal cavity elicits rhythmic synchronized activity that can trigger and/or elicit epileptic electro‐graphic activities in the limbic structures of the brain.
Selective hemispheric stimulation by unilateral forced nostril breathing.
TLDR
It is shown that forced nostril breathing in one nostril produces a relative increase in the EEG amplitude in the contralateral hemisphere, suggesting the possibility of a non-invasive approach in the treatment of states of psychopathology where lateralized cerebral dysfunction have been shown to occur.
Activation of epileptic electrographic phenomena in the human EEG by nasal air flow.
TLDR
The effects of deep nasal breathing can hardly be explained by metabolic-vascular mechanisms, which probably are involved in the course of oral hyperventilation, and are in agreement with animal experiments demonstrating that the mechanical stimulus of nasal air flow operates as a synchronizing impulse for certain rhinencephalic structures.
A model for the central control of airflow patterns within the human nasal cycle
TLDR
A control model involving a hypothalamic centre and two brainstem half centres is proposed to explain both the in-phase and reciprocal changes in airflow associated with the nasal cycle.
Nasal airflow asymmetries and human performance
TLDR
A significant relationship was obtained between the pattern of nasal airflow with normal breathing and relative spatial vs verbal performance and forced uni-nostril breathing had no effect on performance.
Activating effect of nasal air flow on epileptic electrographic abnormalities in the human EEG. Evidence for the reflect origin of the phenomenon.
TLDR
Results speak in favour of the assumption that a neural [reflex] mechanism of the activating effect of nasal hyperventilation is involved, with a reflexogenic area in the superior nasal meatus.
The effects of unilateral forced nostril breathing on cognition.
TLDR
This paper correlates uninostril airflow with varying ratios of verbal/spatial performance in 23 right-handed males and shows that relatively greater cognitive ability in one hemisphere corresponds to unilateral forced nostril breathing in the contralateral nostril.
The relationship of cortical activation to alternating autonomic activity.
TLDR
This study does not support changes in hemispheric activation in subjects untrained in breathing techniques, and repeated measures ANOVAs showed non-significant changes in the alpha and beta bandwidths across the 4 experimental conditions.
Selective Unilateral Autonomic Activation: Implications for Psychiatry
TLDR
While UFNB has been studied for its potential effects on the endogenous ultradian rhythms of the autonomic and central nervous system, and their tightly coupled correlates, VNS has yet to be studied in this regard.
The central reciprocal control of nasal vasomotor oscillations
TLDR
The evidence presented indicated that nasal vasomotor oscillations are driven from sympathetic oscillators which may be independent of, or can be entrained by, central respiratory activity.
...
1
2
3
4
5
...