History of Psychology Dr. Paul Dockree, History of Psychology: PS1203, 2009 Course Information • Location: • Mondays: Arts 2037; Thursdays: Arts 2043 • Lecture Notes: • All lecture notes will be provided before each lecture and will go on Psychology web pages after the lecture: • Go to http://www.tcd.ie/Psychology/lecturer_notes/index.html • Reading: • Core text: B. M Thorne & T. B. Henley, Connections in the History and Systems of Psychology (3rd ed., Houghton Mifflin, 2005) • Optional reading of interest: • • Fancher, R.E. (1996). Pioneers of Psychology. (3rd Ed.). London: Norton. Fuller, R. (1995). Seven Pioneers of Psychology. London: Routledge. • Examinations: • One end-of-year essay examination – details of its content and when and where will follow. • Please contact me if you are a visiting student who will not be here for the end-of-year exams in May. • Contact: • dockreep@tcd.ie • Room 1.04, School of Psychology. Course Timetable Lecture 1: Introduction to the History of Psychology Why Study History? Given the current level of research sophistication, what can be learned by studying a discipline’s history? To have a knowledge base – to know what has already been investigated and understood. “Those who do not know history are doomed to repeat it” (George Santayana). To understand how theoretical developments have evolved in psychology through competition and opposition of ideas. Why Study History? • To make connections in an incredibly diverse field of study. • To discover interesting personalities or ‘characters’ in history. • To be able to critique our current thinking about psychology today. • Is the current “mindset” the most appropriate that will be refined and augmented in the years to come or will it be replaced? • To understand the ethical issues pertaining to psychological questions. • Emotional distress for the participants of certain studies • Theoretical understanding vs. real-world application • To change behaviour or leave unadulterated Being Aware of Bias in History • Idiosyncrasies of the historian – overemphasis of certain events and de-emphasis of others. • Dominant theories can dominate the textbooks and hence the history books giving the impression that past theories were stepping stones to the modern correct way of thinking. • Imposing present sensitivities (e.g., cultural, sexual, ethical) on the past. • Great person (personalistic) vs. zeitgeist (naturalistic) view • “You get the personalistic view when you ignore the antecedents of the great man, and you get the naturalistic view back again when you asked what made the great man great” (Boring, 1950) What is it about Psychology that is Scientific? • What psychology aspires to be is a good starting point in its history – psychology aspires to be a science. • What is it about psychology that is or could ever hope to be a science? When is something scientific? When it employs the scientific method? • We expect science to explain how things work, how mechanisms operate. • What is it that makes a explanation a scientific explanation? (Carl Hempel, 1950) • Nomological deductive model – an event or phenomenon is an instance of a universal law known to be true. • An explanation sketch – a very reliable statistical law (e.g., supply and demand in economics). What is it about Psychology that is Scientific? • How does psychology stand up to Carl Hempel’s analysis? • In some areas of psychology (sensation and perception, aspects of learning and memory) there are reliable statistical laws that allow one to make accurate predictions about behaviour. • In other areas of psychology (interpersonal behaviour, psychoanalytic theory, personality theory, emotion, motivation etc.) the relationships prove less reliable with less predictive power. • Scientific and Humanistic approaches: two opposing views • What makes an event psychological in the first instance? What is it about Psychology that is Scientific? • Two different psychologies • A scientific psychology or a psychology aspiring to scientific status. A process based approach, not concerned with individuals but group norms • e.g., visual processing, RT as a function of stimulus intensity, how often you should rehearse a list of items in order to remember them, the effects of brain lesions on speech, the effects of brain lesion on emotion etc. • Deterministic view: behaviour can be explained in terms of biological, electrical and chemical changes in the brain. In other words all behaviour is determined by brain states. • A humanistic psychology argues that we can predict behaviour, not through deterministic laws, but based on common culture, values, language, development and attitudes. What do we want from psychological theories and explanations? • Reduction & replacement • Scientists try to reduce larger theories to more elementary or basic theories • Physical reduction in psychology is the theory that all mental states will ultimately be explained as brain states; psychology will become an outpost of biology. • The non-reductive perspective • Psychological phenomena cannot be reduced or replaced by simpler theories – cultural, social, interpersonal factors are a different level of explanation from the biological How do levels of explanation differ among peers and predecessors? Will psychology ever develop a cohesive, widely accepted theory and should it try? What counts as progress in science and psychology? • Does science develop in a series of progressive steps leading up to our current state of enlightenment? No. What counts as progress in science and psychology? • In reality, the history of science has a repeating cycle of stages Pre-paradigm period • contending schools • random factgathering • no science Normal Science Anomaly Crisis Revolution • science begins • important insoluble problem • insecurity • younger scientists adhere to new paradigm • one paradigm, no schools • puzzle solving research • loosening of paradigm restrictions • contending theories • emergence of • some older scientists switch allegiance What have been psychology’s biggest blunders and greatest hits? • Falsification – Karl Popper (1902-1994) • How do you tell real science from fake science? • A real scientific theory risks falsification from data accumulation over time (ie., the theory could ultimately be proven wrong) • A fake scientific theory can never be proven wrong usually because of ‘escape clauses’ – Eg, astrology, psychanalysis • But scientific vs non-scientific is not sufficient criteria to determine psychology’s highpoints and lowpoints. How did Psychology evolve as a discipline? • The founders of psychology were philosophers – the ancient Greeks were important antecedents to modern Western ideals. • Roman pragmatism and scepticism towards science and philosophy • The renaissance (‘rebirth’) of science 14th – 16th century in Europe. How did Psychology evolve as a discipline? • 17th century – Psychological idea emerges as an outgrowth of empirical and rational philosophy • Science displaces religion as an authority on understanding • 18th century – Psychology began to emerge as a science in conjunction with studies of the nervous system • Founder of Experimental Psychology: Wilhelm Wundt (1832-1920). • Established the first laboratory for the study of psychology in Leipzig in 1879; • Campaigned to make psychology an independent discipline; • Defined psychology as the scientific study of conscious experience; • Trained psychologists who spread throughout Europe and North America. On Thursday: Origins Of Modern Psychology Within Philosophy