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neuron
neuron

The role of white matter in learning and mental illnesses

Neurobiology, 14-07-2015

The nervous system consists of gray matter and white matter. Grey matter is found mainly in the cortex, and is composed of the cell bodies of neurons (“gray cells”). White matter is nerve cell bodies projections (axons), which transmit information from the cell bodies to synapses connecting the neurons to each other. The majority of axons are […]

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papieros
papieros

Nicotine addiction – a sensitization-homeostasis theory

Neurobiology, 21-06-2015

Smoking cigarettes causes psychological addiction, because it impacts  the pleasure center of the brain. It also addicts physically as a result of the development of tolerance to nicotine. Some time after smoking, addicts feel withdrawal symptoms, ie. restlessness, irritability, inability to concentrate, etc. – This is the traditional theory of nicotine addiction. Joseph R. DiFranza, working as a family […]

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skoki spadochronowe
skoki spadochronowe

Sensation seeking

Neurobiology, Psychology, 20-06-2015

The concept “sensation seeking” was developed in 1979 by Marvin Zuckerman and its definition is “the search of varied, novel, complex and intense feelings and experiences, and readiness to take physical, social, legal, and financial risks for the sake of such experiences”. 

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adrenalina
adrenalina

The biology of stress

Neurobiology, 20-06-2015

The stress response involves two biological systems – the sympathetic nervous system, which is activated first and hypothalamic–pituitary–adrenal axis (HPA axis), which takes effect after a certain time.

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ptak w locie
ptak w locie

What is flow experience?

Neurobiology, Psychology, 20-06-2015

Flow experience is a state of deep concentration, during which we forget about everything, except what we are doing right now. A person during flow experience feels happiness and peace. Flow describes e.g. composers: “You are in a state of such ecstasy that you almost don’t exist. It has happened to me many times. My hands do not […]

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