Neuroscience is the scientific study of the nervous system, its functions, and its disorders. It is a multidisciplinary science that combines physiology, anatomy, molecular biology, developmental biology, cytology, psychology, physics, computer science, chemistry, medicine, statistics, and mathematical modeling to understand the fundamental and emergent properties of neurons, glia and neural circuits. The understanding of the biological basis of learning, memory, behavior, perception, and consciousness has been described by Eric Kandel as the "epic challenge" of the biological sciences.
Psychophysiology is the branch of psychology that is concerned with the physiological bases of psychological processes. While psychophysiology was a general broad field of research in the 1960s and 1970s, it has now become quite specialized, based on methods, topic of studies and scientific traditions. Methods vary as combinations of electrophysiological methods, neuroimaging, and neurochemistry. Topics have branched into subspecializations such as social, sport, cognitive, cardiovascular, clinical and other branches of psychophysiology.
Cognitive neuroscience is the scientific field that is concerned with the study of the biological processes and aspects that underlie cognition, with a specific focus on the neural connections in the brain which are involved in mental processes. It addresses the questions of how cognitive activities are affected or controlled by neural circuits in the brain. Cognitive neuroscience is a branch of both neuroscience and psychology, overlapping with disciplines such as behavioral neuroscience, cognitive psychology, physiological psychology and affective neuroscience. Cognitive neuroscience relies upon theories in cognitive science coupled with evidence from neurobiology, and computational modeling.
The following outline is provided as an overview of and topical guide to neuroscience:
Social cognition is a topic within psychology that focuses on how people process, store, and apply information about other people and social situations. It focuses on the role that cognitive processes play in social interactions.
Physiological psychology is a subdivision of behavioral neuroscience that studies the neural mechanisms of perception and behavior through direct manipulation of the brains of nonhuman animal subjects in controlled experiments. This field of psychology takes an empirical and practical approach when studying the brain and human behavior. Most scientists in this field believe that the mind is a phenomenon that stems from the nervous system. By studying and gaining knowledge about the mechanisms of the nervous system, physiological psychologists can uncover many truths about human behavior. Unlike other subdivisions within biological psychology, the main focus of psychological research is the development of theories that describe brain-behavior relationships.
Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat interval.
Social neuroscience is an interdisciplinary field devoted to understanding the relationship between social experiences and biological systems. Humans are fundamentally a social species, and studies indicate that various social influences, including life events, poverty, unemployment and loneliness can influence health related biomarkers. Still a young field, social neuroscience is closely related to personality neuroscience, affective neuroscience and cognitive neuroscience, focusing on how the brain mediates social interactions. The biological underpinnings of social cognition are investigated in social cognitive neuroscience.
Pyotr Kuzmich Anokhin was a Soviet and Russian biologist and physiologist, known for his theory of functional systems and the concept of systemogenesis. He made important contributions to cybernetics and psychophysiology. His pioneering concept on feedback was published in 1935.
Social connection is the experience of feeling close and connected to others. It involves feeling loved, cared for, and valued, and forms the basis of interpersonal relationships.
"Connection is the energy that exists between people when they feel seen, heard and valued; when they can give and receive without judgement; and when they derive sustenance and strength from the relationship." —Brené Brown, Professor of social work at the University of Houston
Jean Decety is an American–French neuroscientist specializing in developmental neuroscience, affective neuroscience, and social neuroscience. His research focuses on the psychological and neurobiological mechanisms underpinning social cognition, particularly social decision-making, empathy, moral reasoning, altruism, pro-social behavior, and more generally interpersonal relationships. He is Irving B. Harris Distinguished Service Professor at the University of Chicago.
Allan N. Schore is an American psychologist and researcher in the field of neuropsychology.
Vagal tone is activity of the vagus nerve and a fundamental component of the parasympathetic branch of the autonomic nervous system. This branch of the nervous system is not under conscious control and is largely responsible for the regulation of several body compartments at rest. Vagal activity results in various effects, including: heart rate reduction, vasodilation/constriction of vessels, glandular activity in the heart, lungs, and digestive tract, liver, immune system regulation as well as control of gastrointestinal sensitivity, motility and inflammation.
Polyvagal theory (PVT) is a collection of proposed evolutionary, neuroscientific, and psychological constructs pertaining to the role of the vagus nerve in emotion regulation, social connection and fear response. The theory was introduced in 1994 by Stephen Porges. There is consensus among experts that the assumptions of the polyvagal theory are untenable. PVT is popular among some clinical practitioners and patients, but it is not endorsed by current social neuroscience.
John Terrence Cacioppo was the Tiffany and Margaret Blake Distinguished Service Professor at the University of Chicago. He founded the University of Chicago Center for Cognitive and Social Neuroscience and was the director of the Arete Initiative of the Office of the Vice President for Research and National Laboratories at the University of Chicago. He co-founded the field of social neuroscience and was member of the department of psychology, department of psychiatry and behavioral neuroscience, and the college until his death in March 2018.
Gary Berntson is an emeritus professor at Ohio State University with appointments in the departments of psychology, psychiatry and pediatrics. He is an expert in psychophysiology, neuroscience, biological psychology, and with his colleague John Cacioppo, a founding father of social neuroscience. His research attempts to elucidate the functional organization of brain mechanisms underlying behavioral and affective processes, with a special emphasis on social cognition.
C. Sue Carter is an American biologist and behavioral neurobiologist. She is an internationally recognized expert in behavioral neuroendocrinology. In 2014 she was appointed Director of The Kinsey Institute and Rudy Professor of Biology at Indiana University. Carter was the first person to identify the physiological mechanisms responsible for social monogamy.
Myron Arms Hofer is an American psychiatrist and research scientist, currently Sackler Institute Professor Emeritus in the Department of Psychiatry at Columbia University College of Physicians & Surgeons. He is known for his research on basic developmental processes at work within the mother-infant relationship. Using animal models, he found unexpected neurobiological and behavioral regulatory processes within the observable interactions of the infant rat and its mother. Through an experimental analysis of these sensorimotor, thermal and nutrient-based processes, he has contributed to our understanding of the impact of early maternal separation, the origins of the attachment system, and the shaping of later development by variations in how mothers and infants interact.
Stan Tatkin is a clinician, researcher, teacher, and developer of A Psychobiological Approach to Couple Therapy (PACT).
Interpersonal neurobiology (IPNB) or relational neurobiology is an interdisciplinary framework that was developed in the 1990s by Daniel J. Siegel, who sought to bring together scientific disciplines to demonstrate how the mind, brain, and relationships integrate. IPNB views the mind as a process that regulates the flow of energy and information through its neurocircuitry, which is then shared and regulated between people through engagement, connection, and communication. Drawing on systems theory, Siegel proposed that these processes within interpersonal relationships can shape nervous system maturation. Siegel claimed that the mind has an irreducible quality which informs this approach.
