Medical psychology or medico-psychology is the application of psychological principles to the practice of medicine, primarily drug-oriented, for both physical and mental disorders.
Psychology is the scientific study of mind and behavior. Psychology includes the study of conscious and unconscious phenomena, including feelings and thoughts. It is an academic discipline of immense scope, crossing the boundaries between the natural and social sciences. Psychologists seek an understanding of the emergent properties of brains, linking the discipline to neuroscience. As social scientists, psychologists aim to understand the behavior of individuals and groups. Ψ (psi), the first letter of the Greek word psyche from which the term psychology is derived, is commonly associated with the science.
The American Psychological Association (APA) is the largest scientific and professional organization of psychologists in the United States, with over 146,000 members, including scientists, educators, clinicians, consultants, and students. It has 54 divisions—interest groups for different subspecialties of psychology or topical areas. The APA has an annual budget of around $125 million.
Applied psychology is the use of psychological methods and findings of scientific psychology to solve practical problems of human and animal behavior and experience. Educational and organizational psychology, business management, law, health, product design, ergonomics, behavioural psychology, psychology of motivation, psychoanalysis, neuropsychology, psychiatry and mental health are just a few of the areas that have been influenced by the application of psychological principles and scientific findings. Some of the areas of applied psychology include counseling psychology, industrial and organizational psychology, engineering psychology, occupational health psychology, legal psychology, school psychology, sports psychology, community psychology, neuropsychology, medical psychology and clinical psychology, evolutionary psychology, human factors, forensic psychology and traffic psychology. In addition, a number of specialized areas in the general area of psychology have applied branches. However, the lines between sub-branch specializations and major applied psychology categories are often mixed or in some cases blurred. For example, a human factors psychologist might use a cognitive psychology theory. This could be described as human factor psychology or as applied cognitive psychology. When applied psychology is used in the treatment of behavioral disorders there are many experimental approaches to try and treat an individual. This type of psychology can be found in many of the subbranches in other fields of psychology.
School psychology is a field that applies principles from educational psychology, developmental psychology, clinical psychology, community psychology, and behavior analysis to meet the learning and behavioral health needs of children and adolescents. It is an area of applied psychology practiced by a school psychologist. They often collaborate with educators, families, school leaders, community members, and other professionals to create safe and supportive school environments.
Clinical psychology is an integration of human science, behavioral science, theory, and clinical knowledge for the purpose of understanding, preventing, and relieving psychologically-based distress or dysfunction and to promote subjective well-being and personal development. Central to its practice are psychological assessment, clinical formulation, and psychotherapy, although clinical psychologists also engage in research, teaching, consultation, forensic testimony, and program development and administration. In many countries, clinical psychology is a regulated mental health profession.
Community psychology is concerned with the community as the unit of study. This contrasts with most psychology which focuses on the individual. Community psychology also studies the community as a context for the individuals within it, and the relationships of the individual to communities and society. Community psychologists seek to understand the functioning of the community, including the quality of life of persons within groups, organizations and institutions, communities, and society. Their aim is to enhance quality of life through collaborative research and action.
Health psychology is the study of psychological and behavioral processes in health, illness, and healthcare. The discipline is concerned with understanding how psychological, behavioral, and cultural factors contribute to physical health and illness. Psychological factors can affect health directly. For example, chronically occurring environmental stressors affecting the hypothalamic–pituitary–adrenal axis, cumulatively, can harm health. Behavioral factors can also affect a person's health. For example, certain behaviors can, over time, harm or enhance health. Health psychologists take a biopsychosocial approach. In other words, health psychologists understand health to be the product not only of biological processes but also of psychological, behavioral, and social processes.
The Association for Psychological Science (APS), previously the American Psychological Society, is an international non-profit organization whose mission is to promote, protect, and advance the interests of scientifically oriented psychology in research, application, teaching, and the improvement of human welfare. APS publishes several journals, holds an annual meeting, disseminates psychological science research findings to the general public, and works with policymakers to strengthen support for scientific psychology.
Morton Deutsch was an American social psychologist and researcher in conflict resolution. Deutsch was one of the founding fathers of the field of conflict resolution. A Review of General Psychology survey, published in 2002, ranked Deutsch as the 63rd most cited psychologist of the 20th century.
Leslie Samuel Greenberg is a Canadian psychologist born in Johannesburg, South Africa, and is one of the originators and primary developers of Emotion-Focused Therapy for individuals and couples. He is a professor emeritus of psychology at York University in Toronto, and also director of the Emotion-Focused Therapy Clinic in Toronto. His research has addressed questions regarding empathy, psychotherapy process, the therapeutic alliance, and emotion in human functioning.
International or global psychology is an emerging branch of psychology that focuses on the worldwide enterprise of psychology in terms of communication and networking, cross-cultural comparison, scholarship, practice, and pedagogy. Often, the terms international psychology, global psychology, transnational psychology, and cross-cultural psychology are used interchangeably, but their purposes are subtly and importantly different: Global means worldwide, international means across and between nations, transnational means to transcend the nation-state, cross-cultural means across cultures. In contrast, the term “multicultural” is more often used to refer to ethnic and other cultural differences existing within a given nation rather than to global or international comparisons.
Military psychology is a specialization within psychology that applies psychological science to promote the readiness of military members, organizations, and operations. Military psychologists provide support to the military in many ways, including through direct clinical care, consultation to military commanders, teaching others and supporting military training, and through research relevant to military operations and personnel. Military psychology as a field has been growing since the early 20th century, evidence that the demands and needs for psychological clinical and operational application is continuing to grow steadily. There are many stressors associated with military service, including exposure to high-risk training and combat. As such, psychologists are critical support components that assist military leaders in designing appropriate training programs, providing oversight to those programs, and assisting military members as they navigate the challenges of military training and their new lifestyle. Military psychology covers a wide rang of fields throughout the military including operational, tactical, and occupational psychology. Gender differences between military-trained personnel who seek mental health assistance have been extensively studied.Specific examples include post traumatic stress disorder (PTSD) associated with combat, or guilt and family/partner difficulties accompanying extended or frequent deployments due to separation. Clinical providers in military psychology are often focused on the treatment of stress, fatigue, and other personal readiness issues. Previous wars such as the Korean war, Vietnam war, and WW 2 provide great insight to the workings and practices of military psychology and how the practices have changed and assisted the military over the years.
Feminist psychology is a form of psychology centered on social structures and gender. Feminist psychology critiques historical psychological research as done from a male perspective with the view that males are the norm. Feminist psychology is oriented on the values and principles of feminism.
Consulting Psychology Journal: Practice and Research is the flagship journal of the Society of Consulting Psychology, a division of the American Psychological Association. It is a peer-reviewed, scholarly journal that publishes quantitative and qualitative research, case studies, conceptual articles, and wisdom papers that advance the practice of providing psychologically-based services to improve organizations and the people who work in them.
Consulting psychology is a specialty area of psychology that addresses such areas as assessment and interventions at the individual, group, and organizational levels. The Handbook of Organizational Consulting Psychology provides an overview of specific areas of study and application within the field. The major journal in the field is Consulting Psychology Journal: Practice and Research. Consulting psychologists typically work in business or non-profit organizations, in consulting firms or in private practice. Consulting psychologists are typically professionally licensed as psychologists.
Psychology encompasses a vast domain, and includes many different approaches to the study of mental processes and behavior. Below are the major areas of inquiry that taken together constitute psychology. A comprehensive list of the sub-fields and areas within psychology can be found at the list of psychology topics and list of psychology disciplines.
Ronald Roesch is a professor of psychology at Simon Fraser University in British Columbia, Canada.
Transnational psychology is a branch of psychology that applies postcolonial, context-sensitive cultural psychology, and transnational feminist lenses to the field of psychology to study, understand, and address the impact of colonization, imperialism, and globalization, and to counter the Western bias in the field of psychology. Transnational psychologists partner with members of local communities to examine the unique psychological characteristics of groups without regard to nation-state boundaries.
