Already you can see your brain is not entirely under your control. If you see something specific this will cause certain neurons to fire based on your memories and understanding of that object. But, it also might cause surrounding neurons to fire, depending on the associations you have formed during this lifetime.
When certain neurons Fire, they cause particular emotions. Thats because neurons communicate across synapses. Small neurons between the end of one neuron ( the axon which is the tail) and the dendrites like arms of another.
At the end of each axon , is the synaptic knob. This is filled with chemicals called neurotransmitters, held inside neuro- vesicles. When the synapse fires, it causes these neurotransmitters to be released and that then alters the behaviors of the transmission and the surrounding cells.
Some neurotransmitters are excitatory, and make other neurons more likely to fire. Others are inhibitory and make them less likely to fire and become more suppressed.
Neurotransmitters are linked closely with hormones as well. Some hormones act like neurotransmitters while some neurotransmitters act like hormones. Essentially, hormones are longer lasting and generally produced in the body. While, neurotransmitters have shorter lasting effects and are produced in the brain. Even the hormones produced in the body though, are largely triggered by the pituitary glands. This is located in the brain.
An example is a lion , and your brain will sit up and take notice owing to the associations you begin forming with that image. Relevant neurons will fire, and because those neurons are coded with danger, they will release a number of neurotransmitters that will release dopamine and cortisol that will increase activity and say that something important is happening.
This increased activity , causes more of the brain to light up and areas around the hypothalamus will then begin to trigger activity to the pituitary glands. Producing adrenocorticotrophic hormones. The adrenal gland will also be triggered at this point, releasing the hormone epinephrine. This is essentially a form of adrenaline. This is then the set of changes that it causes in the sympathetic nervous system:
The triggers of psychological changes include:
The acceleration of the heart and lungs
Vasoconstriction- the thinning of the blood vessels
Dilation of the blood vessels leading to the muscles
Dilation of the pupils
Inhibition of erection
Sense of dread and anxiety
Thickening of the blood to encourage clotting after injury
Contraction of the muscles
Suppression of digestion and immune function
Essentially, the body now directs all blood, oxygen , nutrients and resources to the muscles and the brain. In order to aid in combat or other physical activities. There are many complex interactions of chemicals and hormones going on inside your body all of the time.
Owner and Founder At The Goddess Bibles A Memoir By Laura Zukerman
Becoming Your Inner Goddess
Goddess on Fire 🔥