Vocal Anatomy, Resonance, and Sense of Self

How does the larynx produce sound? How is that sound shaped by the rest of the vocal column? And how does the perception of another person's resonance function in relationship?
Here's a clip from last year's class, 'Neurofascial Approach to the Diaphragm, Breath, and Vocal Column, where we take a therapeutic lens on breath and voice.
Many animals have evolved a narrowed closure in their airway for sound production. But the more social the animal, the more sophisticated its ability to shape that sound, and to communicate information about its perceptual and autonomic state to others of its kind.
Resonance in human evolution is particularly crucial -- what can you tell from hearing just a voice in the darkness?
More background on the online class, which is open to all healthcare providers: bit.ly/32uJXAM
Research links mentioned in the video, as well as a bunch of others:
- Anatomy and development and physiology of the larynx (Sasaki 2016)
www.nature.com/gimo/contents/...
- Identity and novelty in the avian syrinx (Kingsley et al 2018)
pubmed.ncbi.nlm.nih.gov/30249...
- Central Nervous System Control of Voice and Swallowing:
www.ncbi.nlm.nih.gov/pmc/arti...
- Evolution and Functional Differentiation of Diaphragm Muscle in Mammals
www.ncbi.nlm.nih.gov/pmc/arti...
- Inspiring Song: The Role of Respiratory Circuitry in the Evolution of Vertebrate Vocal Behavior
www.ncbi.nlm.nih.gov/pmc/arti...
- Manual Evaluation of the Diaphragm Muscle
www.semanticscholar.org/paper...
Evolutionary Origins for Social Vocalization in a Vertebrate Hindbrain-Spinal Compartment
pubmed.ncbi.nlm.nih.gov/18635...
- Breathing: motor control of diaphragm muscle:
www.ncbi.nlm.nih.gov/pmc/arti...
- Network of Breathing: Multifunctional Role of the Diaphragm:
journals.viamedica.pl/advance... [PDF only]
- The effect of breathing diaphragmatic breathing on stress, negative affect, and attention in adults: www.ncbi.nlm.nih.gov/pmc/arti...
- Emotions and ensuing motor performance are altered by regulating breathing frequency: implications for emotion regulation and sports performance
www.frontiersin.org/articles/...
- Being anxious, thinking positively: The effect of emotional context on respiratory sensory gating: www.frontiersin.org/articles/...
- Neurogenic mechanisms for locomotor-respiratory coordination in mammals: www.frontiersin.org/articles/...
- Breath-holding and its breakpoint:
physoc.onlinelibrary.wiley.co...