Understanding Your Brain and Some Basic Psychology

Who are you? What makes you , you? The answer is your brain to the most extremes. Your brain in turn is made up of billions of neurons. These are small cells that have tendril like extensions reaching out and into the different corners of your skull.

These neurons can be created , destroyed or changed due to any experiences that we encounter. They represent all kinds of things such as memories, sight, smells, thoughts and the commandments to move our bodies.

When an electrical impulse moves through a neuron, this means it is firing and thus we experience whatever correlates with that firing. If you open up someone’s skull and use an electrode to stimulate individual neurons, then one might make someone see a point of red light, one might make someone move their arm, and another might make them remember their mother.

These neurons are all interconnected and the more often two neurons Fire at once, the more connected they become. Thus, when one neuron fires, it is likely that others around it will fire depending upon the strength of the firing. This is called the action potential.

Some clusters of neurons from the major brain structures, like the occipital lobe, motor cortex or the hippocampus; are responsible for particular behaviors. Other neurons reach from one end of the brain all the way to the other end of the brain.

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

Tunnel vision

Pain reduction

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.


Laura Zukerman

Owner and Founder At The Goddess Bibles A Memoir By Laura Zukerman

Becoming Your Inner Goddess

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