Tense Selfhoods – NIRS, EEG, and SpO₂  

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During states of sustained attentional focus and high-performance flow, SpO₂ levels between 94% and 97% are observed, indicating a slight increase in blood CO₂ (mild, controlled hypercapnia). This physiological state does not represent hypoxia but rather a fine-tuned ventilation-perfusion balance, resulting in:  

- Cortical cerebral vasodilation, particularly in frontal regions;  

- Increased cerebral blood flow (CBF);  

- Improved local oxygenation (↑ OxyHb) and efficient oxygen release to active tissue, as described by the hemoglobin dissociation curve (Bohr effect);  

- Greater emotional stability and embodied presence—ideal for the emergence of functional Selfhoods such as the Executor Self, Caregiver Self, or Flow Self.  

In other words, slightly lower SpO₂ levels (94–97%) are consistent with optimized physiological focus**, unlike states of agitation (SpO₂ > 98%) or fatigue/hypoxia (SpO₂ < 93%)


Tense Selfhoods – NIRS EEG SpO₂

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Table 1 – Functional Tensional Selves: NIRS, EEG and SpO₂

Table 2 – Hyperoxygenated Selves: SpO₂ 99–100% (Bioaffective Alert)

Key NIRS/fNIRS Publications Supporting This Approach  

1. Neuroaffectivity and Cognitive-Emotional States  

- Scholkmann et al. (2014)  

  - "Short-term changes in the cortical hemodynamic response detected by functional near-infrared spectroscopy."  

  - Contribution: Demonstrates how rapid OxyHb/DeoxyHb (NIRS) fluctuations capture transitions between emotional states (e.g., Executor Self vs. Grieving Self).  

- Holper et al. (2012)  

  - "Testing the validity of functional NIRS for cognitive and affective neuroscientific studies."  

  - Contribution: Validates NIRS for discriminating affective loads (e.g., fear in the Critical Self vs. love in the Caregiver Self).  

2. Hyperventilation and SpO₂  

- Kohl et al. (2020)  

  - "The effect of hyperventilation on cerebral hemodynamics and oxygenation measured by NIRS."  

  - Contribution: Shows that elevated SpO₂ (>98%) + decreased OxyHb (NIRS) indicates cerebral vasoconstriction (key for understanding Panic Self and Superhero Self).  

3. NIRS-EEG Integration  

- Wallois et al. (2012)  

  - "EEG-NIRS in epilepsy and neurovascular coupling."  

  - Contribution: Provides a model for correlating EEG microstates with hemodynamics (e.g., Flow Self shows PCC-medial PFC coupling).  

- Dieler et al. (2012)  

  - "Functional NIRS-EEG during resting-state in humans."  

  - Contribution: Reveals how low-frequency EEG oscillations + NIRS identify Dissociative Selfhoods (e.g., Self-Abandonment Self).  

4. Clinical Applications  

- Ehlis et al. (2014)  

  - "Application of NIRS in psychiatry: monitoring prefrontal activation during cognitive tasks."  

  - Contribution: Links DLPFC hypoactivation (NIRS) to Rigid Selfhoods (e.g., Perfectionist Self).  

Gaps and Opportunities*  

- Lack of studies linking peripheral SpO₂ + cortical NIRS in real time.  

- Mapping hemodynamic signatures of each Selfhood.  

- Validating SpO₂ as a marker of existential states.  

How to Use These Studies  

1. Cite Kohl et al. (2020) to justify including SpO₂ in the model.  

2. Use Holper et al. (2012) to support affective discrimination via NIRS.  

3. Explore Wallois et al. (2012) to integrate EEG + NIRS in detecting Dynamic Selfhoods. 

 

Functional Tensional Selves - NIRS EEG and SpO2


Hyperoxygenated Selves SpO2 99–100

Integrated Notes

• SpO₂ between 94–97% indicates optimal balance of oxygen and CO₂ → associated with vasodilation, efficient cortical perfusion, and conscious functional presence.

• SpO₂ ≥99% at rest often reflects hidden respiratory dysregulation (hyperventilation) → cerebral vasoconstriction, reduced oxygen delivery, and potential functional disorganization.

• Interpreting SpO₂ requires NIRS and EEG correlation to determine whether the self is in a state of flow, tension, or masked breakdown.

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