In law, a witness is someone who, either voluntarily or under compulsion, provides testimonial evidence, either oral or written, of what they know or claim to know.
Hindsight bias, also known as the knew-it-all-along phenomenon or creeping determinism, is the common tendency for people to perceive past events as having been more predictable than they were.
Elizabeth F. Loftus is an American psychologist who is best known in relation to the misinformation effect, false memory and criticism of recovered memory therapies.
Together, legal psychology and forensic psychology form the field more generally recognized as "psychology and law". Following earlier efforts by psychologists to address legal issues, psychology and law became a field of study in the 1960s as part of an effort to enhance justice, though that originating concern has lessened over time. The multidisciplinary American Psychological Association's Division 41, the American Psychology–Law Society, is active with the goal of promoting the contributions of psychology to the understanding of law and legal systems through research, as well as providing education to psychologists in legal issues and providing education to legal personnel on psychological issues. Further, its mandate is to inform the psychological and legal communities and the public at large of current research, educational, and service in the area of psychology and law. There are similar societies in Britain and Europe.
A miscarriage of justice occurs when an unfair outcome occurs in a criminal or civil proceeding, such as the conviction and punishment of a person for a crime they did not commit. Miscarriages are also known as wrongful convictions. Innocent people have sometimes ended up in prison for years before their conviction has eventually been overturned. They may be exonerated if new evidence comes to light or it is determined that the police or prosecutor committed some kind of misconduct at the original trial. In some jurisdictions this leads to the payment of compensation.
Fritz Heider was an Austrian psychologist whose work was related to the Gestalt school. In 1958 he published The Psychology of Interpersonal Relations, which expanded upon his creations of balance theory and attribution theory. This book presents a wide-range analysis of the conceptual framework and the psychological processes that influence human social perception. It had taken 15 years to complete; before it was completed it had already circulated through a small group of social psychologists.
Mistaken identity is a defense in criminal law which claims the actual innocence of the criminal defendant, and attempts to undermine evidence of guilt by asserting that any eyewitness to the crime incorrectly thought that they saw the defendant, when in fact the person seen by the witness was someone else. The defendant may question both the memory of the witness, and the perception of the witness.
Géry van Outryve d'Ydewalle is a Belgian scientist. He was professor in psychology with memory and cognition as main topics. He was head of the Laboratory of experimental psychology at the Katholieke Universiteit Leuven (Leuven) until 2012. He worked for some time with Professor William Kaye Estes at Rockefeller University (N.Y.) and lectured at the London School of Economics. In 1992, he was awarded the Francqui Prize on Human Sciences and was elected member of the Royal Flemish Academy of Belgium for Science and the Arts. From 1980 till 2004 he was successively member, Deputy Secretary-General (1984), Secretary-General (1992) and President (1996) of the International Union of Psychological Science. He has been elected as permanent secretary of the Royal Flemish Academy in succession to professor Niceas Schamp, as of 1 September 2010. Géry van Outryve d'Ydewalle has been active as a musician (traverso) in several chamber orchestras. He is the fifth of six children of Baron Pierre van Outryve d'Ydewalle, governor of West-Flanders from 1944 to 1979.
Kathy Pezdek is Professor and Associate Dean of the School of Behavioral and Organizational Sciences (SBOS), Claremont Graduate University in Claremont, California. Dr. Pezdek is a cognitive psychologist specializing in the study of eyewitness memory. She frequently serves as an expert witness in the area of eyewitness identification and has testified on this topic in Federal, State and Superior Court cases. Her extensive research has focused on a range of topics related to Law and Psychology that apply to both adults and children. These topics include face memory, false memory, suggestibility of memory, lineup techniques, and detecting deception. Kathy Pezdek is a Fellow of the American Psychological Society, has served as Editor of Applied Cognitive Psychology and is currently on the Editorial Boards of the Journal of Applied Psychology and Legal and Criminological Psychology.
In eyewitness identification, in criminal law, evidence is received from a witness "who has actually seen an event and can so testify in court".
The cross-race effect is the tendency to more easily recognize faces that belong to one's own racial group. In social psychology, the cross-race effect is described as the "ingroup advantage," whereas in other fields, the effect can be seen as a specific form of the "ingroup advantage" since it is only applied in interracial or inter-ethnic situations. The cross-race effect is thought to contribute to difficulties in cross-race identification, as well as implicit racial bias.
Saul Kassin is a distinguished professor of psychology at John Jay College of Criminal Justice - City University of New York and Massachusetts Professor Emeritus of Psychology at Williams College in Williamstown, Massachusetts.
Eyewitness testimony is the account a bystander or victim gives in the courtroom, describing what that person observed that occurred during the specific incident under investigation. Ideally this recollection of events is detailed; however, this is not always the case. This recollection is used as evidence to show what happened from a witness' point of view. Memory recall has been considered a credible source in the past, but has recently come under attack as forensics can now support psychologists in their claim that memories and individual perceptions can be unreliable, manipulated, and biased. As a result of this, many countries, and states within the United States, are now attempting to make changes in how eyewitness testimony is presented in court. Eyewitness testimony is a specialized focus within cognitive psychology.
Metamemory or Socratic awareness, a type of metacognition, is both the introspective knowledge of one's own memory capabilities and the processes involved in memory self-monitoring. This self-awareness of memory has important implications for how people learn and use memories. When studying, for example, students make judgments of whether they have successfully learned the assigned material and use these decisions, known as "judgments of learning", to allocate study time.
Memory conformity, also known as social contagion of memory, is the phenomenon where memories or information reported by others influences an individual and is incorporated into the individual's memory. Memory conformity is a memory error due to both social influences and cognitive mechanisms. Social contamination of false memory can be exemplified in prominent situations involving social interactions, such as eyewitness testimony. Research on memory conformity has revealed that such suggestibility and errors with source monitoring has far reaching consequences, with important legal and social implications. It is one of many social influences on memory.
Memory gaps and errors refer to the incorrect recall, or complete loss, of information in the memory system for a specific detail and/or event. Memory errors may include remembering events that never occurred, or remembering them differently from the way they actually happened. These errors or gaps can occur due to a number of different reasons, including the emotional involvement in the situation, expectations and environmental changes. As the retention interval between encoding and retrieval of the memory lengthens, there is an increase in both the amount that is forgotten, and the likelihood of a memory error occurring.
Eyewitness memory is a person's episodic memory for a crime or other witnessed dramatic event. Eyewitness testimony is often relied upon in the judicial system. It can also refer to an individual's memory for a face, where they are required to remember the face of their perpetrator, for example. However, the accuracy of eyewitness memories is sometimes questioned because there are many factors that can act during encoding and retrieval of the witnessed event which may adversely affect the creation and maintenance of the memory for the event. Experts have found evidence to suggest that eyewitness memory is fallible.
The misinformation effect occurs when a person's recall of episodic memories becomes less accurate because of post-event information. The misinformation effect has been studied since the mid-1970s. Elizabeth Loftus is one of the most influential researchers in the field. One theory is that original information and the misleading information that was presented after the fact become blended together. Another theory is that the misleading information overwrites the original information. Scientists suggest that because the misleading information is the most recent, it is more easily retrieved.
Gary L. Wells is an American psychologist and an internationally recognized pioneer and scholar in eyewitness memory research. Wells is a professor at Iowa State University with a research interest in the integration of both cognitive psychology and social psychology and its interface with law. He has extensive research on lineup procedures and the reliability and accuracy of eyewitness identification, and has been widely acknowledged in both the field of psychology and the criminal justice system. Wells has received many awards and honorary degrees and been widely recognized for his work and contributions to psychology and the implications his research has made to the legal system.
Fred W. Mast is a full professor of Psychology at the University of Bern in Switzerland, specialized in mental imagery, sensorimotor processing, and visual perception. He directs the Cognitive Psychology, Perception, and Research Methods Section at the Department of Psychology of the University of Bern.
