EEG ERP Psychoactives, Responsibility, and Plasticity after 35 Years - FALAN SfN 2025 Brain Bee Ideas
EEG ERP Psychoactives, Responsibility, and Plasticity after 35 Years - FALAN SfN 2025 Brain Bee Ideas
First-Person Consciousness
I am matured Consciousness. No longer dragged by emotions as before age 25, nor only a critical apprentice between 25 and 35. Now, after 35, I carry both stability and responsibility: every substance, every emotion, every narrative can crystallize more deeply within me. If I choose psychoactives, it is not just play — it is also reprogramming. I may open creative doors, but I may also build invisible prisons.
1. The Brain after 35: Stability and Risk
After 35, the brain shows greater synaptic stability and reduced spontaneous plasticity.
This favors safety and consolidation of narratives but makes the creation of new flexible connections more difficult.
Memories and feelings already established tend to resist change.
2. Psychoactive Use across Age Windows
Before 25 years: risk that psychoactives mold a brain still in formation, hijacking fragile identities.
Between 25–35 years: more metacognition, still enough plasticity for reorganization.
After 35 years: psychoactive use implies greater responsibility, since substances can crystallize patterns and narratives in lasting ways.
3. How Psychoactives Act
Alcohol: reduces prefrontal control, favoring Stone (automatic reactions).
Cannabis: modulates interoception and time perception; risk of anergia if use is chronic.
Stimulants (cocaine, amphetamines): intensify dopamine → fast but unstable reinforcement.
Entactogens (MDMA, ecstasy): boost serotonin/oxytocin → artificial belonging.
Hallucinogens (LSD, ayahuasca): amplify synchronies → may open Paper (contemplation), but can also crystallize illusory narratives.
4. The Role of Late Plasticity
Plasticity after 35 is more dependent on conscious effort (sustained attention, Zone 2, reflective practice).
Psychoactives can induce artificial windows of plasticity, but:
Without critique → they generate rigid narratives (fixations).
With metacognition → they can be integrated into therapeutic and creative processes.
5. Comparative Frame – Age, Psychoactives, and Narratives
Age Range | Predominant Plasticity | Effect of Psychoactives | Main Risk |
Up to 25 years | High, immature | Mold identity in formation | Early narrative hijacking |
25–35 years | High, with critical metacognition | Enable reflective reorganization | Rigidity if critique absent |
After 35 years | Synaptic stability | Crystallize long-lasting narratives | Anergia, rigid fixation |
6. The Importance of Responsibility
After 35, the brain no longer rebuilds as easily: what is crystallized, remains.
Each psychoactive experience should therefore be seen as an act of narrative responsibility: it can open horizons or close possibilities.
The key is to use metacognition to integrate experiences rather than be imprisoned by them.
7. Critical Conclusion
At age 35 and beyond, consciousness reaches a point of balance between stability and responsibility.
Emotions may still open creative pathways.
But psychoactives, when used without critique, can crystallize rigid and anergic narratives.
Late plasticity is not the absence of change: it is an invitation to change with intentionality.
Recognizing this moment means understanding that every chemical or emotional choice is also a narrative choice about who we will become.
References
Volkow, N. D., et al. (2021). Substance use and brain development across the lifespan. Nature Reviews Neuroscience.
Hutten, N. R. P. W., et al. (2020). Psychedelics and plasticity: neurobiological perspectives. European Neuropsychopharmacology.
Guloksuz, S., et al. (2021). Cannabis use and anhedonia: longitudinal brain studies. Biological Psychiatry.
Nutt, D., et al. (2022). Psychoactive substances and therapeutic contexts. Journal of Psychopharmacology.
Koob, G. F., & Volkow, N. D. (2023). Neurobiology of addiction and responsibility. Annual Review of Neuroscience.
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