Simulation theory of empathy: Simulation theory of empathy is a theory that holds that humans anticipate and make sense of the behavior of others by activating mental processes that, if carried into action, would produce similar behavior. This includes intentional behavior as well as the expression of emotions.Yawn: A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the eardrums, followed by an exhalation of breath.Emotion and memory: Emotion can have a powerful response on humans and animals. Numerous studies have shown that the most vivid autobiographical memories tend to be of emotional events, which are likely to be recalled more often and with more clarity and detail than neutral events.Leiden International Medical Student ConferenceGenetics of social behavior: The genetics of social behavior is an area of research that attempts to address the question of the role that genes play in modulating the neural circuits in the brain which influence social behavior. Model genetic species, such as D.Fritz Heider: Fritz Heider (February 19, 1896 – January 2, 1988)American Psychologist., "Fritz Heider (1896 - 1988)".Healthy narcissism: Healthy narcissism is a concept that developed slowly out of the psychoanalytic tradition, and became popular in the late twentieth century.Congenital insensitivity to pain with anhidrosis: Congenital insensitivity to pain with anhidrosis (CIPA), also called hereditary sensory and autonomic neuropathy type IV—is an extremely rare inherited disorder of the nervous system which prevents the sensation of pain, heat, cold, or any real nerve-related sensations (including feeling the need to urinate); however, patients can still feel pressure. CIPA is the fourth type of hereditary sensory and autonomic neuropathy (HSAN), known as HSAN IV.Humanitarian crisis: A humanitarian crisis (or "humanitarian disaster") is defined as a singular event or a series of events that are threatening in terms of health, safety or well being of a community or large group of people."What Is a Humanitarian Crisis", Humanitarian Coalition, Retrieved on 6 May 2013.The great imitator: The Great Imitator is a phrase used for medical conditions that feature nonspecific symptoms and may be confused with a number of other diseases.J.Dyssemia: Dyssemia is a difficulty with receptive and/or expressive nonverbal communication. The word comes from the Greek roots dys (difficulty) and semia (signal).Emotional responsivity: Emotional responsivity refers to the ability to acknowledge an affective stimuli by exhibiting emotion. Any response, whether it is appropriate or not, would showcase the presence of this phenomena.