Motivation is the force that initiates, guides, and maintains goal-oriented behaviors. It is what causes us to take action, whether to grab a snack to reduce hunger or enroll in college to earn a degree. The forces that lie beneath motivation can be biological, social, emotional, or cognitive in nature. Let’s take a look at each one. William James identified a list of human instincts that he believed were essential to survival, including fear, anger, love, shame, and modesty. The main problem with this theory is that it did not really explain behavior, it just described it.  James presumed that we act on impulse, but that leaves out all the learning/conditioning that informs behavior. By the 1920s, instinct theories were pushed aside in favor of other motivational theories, but contemporary evolutionary psychologists still study the influence of genetics and heredity on human behavior. The drive theory is based on the concept of homeostasis, or the idea that the body actively works to maintain a certain state of balance or equilibrium. This theory is useful in explaining behaviors that have a strong biological or physiological component, such as hunger or thirst. The problem with the drive theory of motivation is that these behaviors are not always motivated purely by drive, or the state of tension or arousal caused by biological or physiological needs. For example, people often eat even when they are not really hungry. When arousal levels get too low, for example, a person might watch an exciting movie or go for a jog. When arousal levels get too high, on the other hand, a person would probably look for ways to relax, such as meditating or reading a book. According to this theory, we are motivated to maintain an optimal level of arousal, although this level can vary based on the individual or the situation. Maslow’s hierarchy suggests that people are motivated to fulfill basic needs before moving on to other, more advanced needs. For example, people are first motivated to fulfill basic biological needs for food and shelter, then to progress through higher needs like safety, love, and esteem. Once these needs have been met, the primary motivator becomes the need for self-actualization, or the desire to fulfill one’s individual potential. Maslow was interested in learning about what makes people happy and the things that they do to achieve that aim, rather than focusing on problematic behaviors. Behavioral learning concepts such as association and reinforcement play an important role in this theory of motivation. This theory shares some similarities with the behaviorist concept of operant conditioning. In operant conditioning, behaviors are learned by forming associations with outcomes. Reinforcement strengthens a behavior while punishment weakens it. While incentive theory is similar, it instead proposes that people intentionally pursue certain courses of action in order to gain rewards. The greater the perceived rewards, the more strongly people are motivated to pursue those reinforcements. Incentives can arise from outside (extrinsic) or inside (intrinsic) an individual. Intrinsic motivation is when you engage in a behavior because you find it rewarding for your own sake, rather than from the desire for an external reward. The theory proposes that motivations consist of three key elements:

Valence: the value people place on the potential outcomeInstrumentality: whether people believe that they have a role to play in the predicted outcomeExpectancy: the belief that one has the capabilities to produce the outcome