Neurotransmitters are chemical substances released by nerve endings. They transmit nerve impulses from nerve to nerve and from nerve to the effecter organs. Nerve impulse is nothing but a propagated action potential, which is the rapid sequential change in the membrane potential of the cells. Neurotransmitters transmit the nerve impulse from the pre-synaptic neuron to the post-synaptic neuron through the...| The Psychology Notes Headquarters
What are neurons? Neurons are nerve cells. They are composed of 3 basic parts: cell body, dendrites and axon. Cell body (Soma) The cell body is the largest part of a neuron. Its main function is to keep the neurone alive by performing tasks such as energy production and protein synthesis. Dendrites Dendrites are the bushy branches of a neuron....| The Psychology Notes Headquarters
In 1964, a woman named Kitty Genovese was attacked by a man near an apartment in New York. The assault lasted 30 minutes and even though more than 38 people heard Kitty’s screams, some even looked out of their windows and witnessed the assault, none of these people came to her aid. Social psychologists John Darley and Bibb Latané suspected...| The Psychology Notes Headquarters
Our ancient ancestors realized that when it comes to finding food and fighting off enemies, it is beneficial to make a friend or two. That’s why we, humans, sometimes find it useful to become social. Why do we befriend some people but not others? Social psychology suggests 3 factors that influence our decision on picking friends. Proximity Proximity means geographic...| The Psychology Notes Headquarters
Our brain is divided into 2 halves, or hemispheres, that are connected to each other by the corpus callosum. These two hemispheres control the motion in and receive sensory inputs from the opposite side of our body. In other words, the left hemisphere controls the right side of our body and also receives sensory inputs from the right side of our body.| The Psychology Notes Headquarters
