Prenatal Development

In this video I discuss prenatal development from conception until birth. This can be divided into the germinal stage, embryonic stage, and fetal stage. Conception occurs when a sperm cell and egg cell join to create a zygote, which then … Read More

Motivation & Goal-Setting

In this last video on motivation I consider the relationship between motivation and the goals that we set for ourselves. I discuss the importance of setting self–concordant goals which are intrinsically motivated and then discuss strategies for achieving goals. In … Read More

Conscious & Unconscious, Approach & Avoidance Motivations

In this video I discuss how motivations may be conscious or unconscious influences on behavior. I describe some of the unconscious motivations proposed by Henry Murray and David McClelland and how external conditions may activate motivations. Next I describe the … Read More

Delay of Gratification & Ironic Effects of Punishment

In this video I introduce the concept of delay of gratification and the famous Marshmallow Test. Mischel, Shoda, and Rodriguez found that the ability to delay gratification at age 4 was associated with higher social competence, coping skills, and even … Read More

Maslow’s Hierarchy of Needs

In this video I describe one way of organizing the many other motivations that we face: Maslow’s Hierarchy of Needs. Abraham Maslow proposed that motivations could be categorized and then those categories could be arranged into a hierarchy of importance, … Read More

Masters & Johnson’s Human Sexual Response Cycle

In this video I briefly describe the work of William Masters and Virginia Johnson in identifying 4 distinct phases of the human sexual response cycle: excitement, plateau, orgasm, and resolution. Like these videos? Don’t forget to subscribe to the channel … Read More

Sexual Motivation

In this video I introduce the basics of sexual motivation and briefly describe hormones involved. Next I discuss some important differences between humans and other species when it comes to sexual motivation, including estrus and hidden fertility. I explain how … Read More

Understanding Obesity

In this video I consider evolutionary explanations for the modern struggle with obesity. I describe how obesity is defined using the calculation of body mass index or BMI and consider potential problems with this simple calculation. I also discuss set … Read More

Introduction to Eating Disorders

In this video I introduce 3 eating disorders: bulimia nervosa, binge–eating disorder, and anorexia nervosa. I briefly describe the symptoms of these disorders and how they may arise from complex interactions of biological factors like genes or hormones and environmental … Read More