(CNS) is composed of the brain and spinal cord which are responsible for controlling behavior. This differs from the autonomic nervous system which relates with more autonomous functions such as respiration and digestion. Within the CNS, there are neurons, which send messages within and from the brain to the rest of body through electrical and chemical signals. The CNS also has glial cells which assist neurons in the communication process. These neurons communicate and form connections, also called consolidation, to form a person's cognition. Hence, learning, from a neuroscience perspective, focuses on how the organization of this neural network changes through the use and reception of information. Neuroscience has an explanation for the acquisition of memory. In the brain, there are two types of memory called working memory (WM) and long-term memory (LTM). WM is memory of immediate thoughts; it is a memory that collects, organizes, and retains sensory information for a short time. Information in WM needs to be repeated in order to be retained. LTM, also called permanent memory, is memory that is retained for the long-term. Hence, a concept is considered "learned" when information from WM enters and gets stored into LTM. Neuroscience also plays a role in related areas such as motivation and self-regulation. Motivation, a psychological component related to learning, also has an explanation through neuroscience. Overall, the brain has a disposition towards rewards and outcomes related to pleasure. In fact, it bring out certain chemical and opiates that give a natural high increasing a person's motivation. Self-regulation, which plays a significant factor into learning, are also represented by the brain's synaptic connections. These particular connections between self-regulatory activities and tasks help people to regulate their learning. Behaviorism Behaviorism views knowledge as a collection of behavioral responses towards different stimuli in the environment. In behaviorism, learning is promoted by positive reinforcement and reiteration. Throughout the history of psychology, there have been many different behaviorist learning theories. All these theories relate stimulus with response such that a person or animal learns and changes its behavior based upon the stimulus it receives. One significant theory proposed by B.F, Skinner is operant conditioning. This theory claims that the consequences from behaviors will determine future behavior. Consequences to behavior that are positive, and therefore reinforcing, will increase the corresponding behavior. However, consequences that are punishing will decrease behavior. In a behaviorist perspective, motivation is due to the consequences of