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
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
Mood disorders are psychological disorders that cause mood disturbance in people. There are 2 main types of mood disorders: 1) Depressive disorders 2) Bipolar disorder Depressive disorders It’s normal for us to feel sad and depressed but these feelings are usually short-lived. Depressive disorder is characterized by prolonged sadness and hopelessness. On average, an episode of depression lasts about 6...| 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
In social psychology, attitude can be defined as the “likes, dislikes of the individual, his positive or negative evaluation regarding people, objects, surroundings, events, world etc.” Attitude is something which keeps on changing according to our experiences. The more experiences we get, the more our attitude about certain things and events changes. For example, if you dislike someone but have...| The Psychology Notes Headquarters
