A Synapse must be open or closed
Some Neuron Cell, which contain a Protein called “parvalbumin,” progressively surround themselves with a hard matrix, a sort of lattice called a “perineuronal net” that becomes increasingly tight and eventually prevents synapses from growing or moving around. Entangled in this rigid net, neural circuits are no longer free to change.
(p.110)
you can help depressed people by injecting a small electric current through the scalp, so neurons get excited again.
In the left hemisphere the “planum temporale” processes language sounds (the phonological region of the brain)
⇒ Language Highways
Only those owls that wore prisms during their youth were able to adjust to this unusual sensory input: their auditory responses shifted to align with the retina, thus enabling them to hunt based on synchronized hearing and night vision signals. Older owls, however, even after having worn prisms for weeks, failed miserably.
[..]
When the prisms were removed, the owls quickly learned to reorient correctly; and as soon as the glasses were put back on, the animals immediately readjusted by shifting the auditory scene by twenty degrees.
(p.113)
⇒ A1 Auditory Cortex
A Miracle in Bukarest
this progressive freezing of neural circuits is precisely what enables our brain to keep a stable trace of all that we learned in our childhood. Those permanent synaptic marks eventually define who we are.
(p.115)
see also
The Self-Organization of the Cortex
Tags: neuroscience science
Superlink: 050 🧠Neuroscience
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Erstellt: 27-04-22 13:02