Trevor Harley is emeritus chair of Cognitive Psychology. [1] His primary research is in the psychology of language and consciousness. From 2003 until 2016 he was Head and Dean of the School of Psychology at the University of Dundee, Scotland, United Kingdom. He is author of several books, including "The Psychology of Language", currently in its fourth edition, published by Psychology Press, "Talking the talk", a book about the psychology of language (psycholinguistics) aimed at a more general audience, "The Science of Consciousness", a general text on consciousness, and "The Psychology of Weather", about how weather affects behaviour. He is a Fellow of the British Psychological Society.
Trevor Harley was born in 1958 in London and grew up near Southampton. He was educated at Price's Grammar School, Fareham. His undergraduate degree was in Natural Sciences at St John's College in the University of Cambridge. He stayed at Cambridge to study for his PhD under the supervision of Brian Butterworth. His PhD was on "Slips of the tongue and what they tell us about speech production". [1]
For his PhD and later research he collected a corpus of several thousand naturally occurring speech errors, and focused on one word substitutes for another (e.g. saying "pass the pepper" instead of "pass the salt"). He concluded that speech production is an interactive, parallel process, leading him to an interest in connectionist modeling, and research on computational modeling, ageing, and metacognition. [1]
After his PhD he took a temporary lectureship at the University of Dundee. He then moved to the University of Warwick, where he stayed until 1996, then moving to a Senior Lectureship at Dundee. He was awarded a personal chair in cognitive psychology in 2003, and became head of department in the same year, and later dean in 2006.
In addition to his academic work, he is an author of a novel, Dirty old rascal ( ISBN 9781445226224), a fantasy about a cook set in the strange Castle where no misdeed goes unpunished. Harley has published an article, Why the earth is almost flat: Imaging and the death of cognitive psychology. He has performed as a stand-up comic, performing at the Edinburgh Fringe in 2013.
Harley's current main research interest is in metacognition, an interest which grew out of his research on ageing and his interest in consciousness. What determines how and why we act as we do? [2] This research is covered in his book, The Science of Consciousness.
Another of his research interest includes how we produce language, although he now studies this in the wider context of how we represent meaning, how language is affected by brain damage, and by normal and pathological ageing (e.g. Alzheimer's and Parkinson's diseases). He also works on how we control our own cognition, and how this ability changes with age. Underlying all his research is a belief that the mind is a parallel, interactive computer, best studied by experimentation and computational modeling. As well as his interest in language and computational modeling, he was also interested in the research of ageing and metacognition. [1]
He is also interested in the weather, and maintains a site about severe weather events in Britain and the British weather in general available from trevorharley.com, [3] calling this role as a "psychometeorologist". He also carries out psychological research about the weather, including why are people so interested in the weather? He maintains a weather station at Newtyle near Dundee. He discusses the effects of the weather on human behaviour in his book, The Psychology of Weather.
He wrote a famous article called Promises, Promises in which he argued that cognitive neuropsychologists have increasingly deviated from the original goals and methods of the subject. [4]
One of Harley's most famous publications is the book The Psychology of Language. In this book, he discusses psycholinguistics, which is the study of relationships that exist between linguistic behaviour and psychological processes. Harley discusses both the low cognitive level processes, including speech and visual word recognition, and the high cognitive level processes that are involved in comprehension. [5] The text covers recent connectionist models of language, describing complex ideas in a clear and approachable manner. Following a strong developmental theme, the text describes how children acquire language (sometimes more than one), and also how they learn to read. [6]
Cognitive psychology is the scientific study of mental processes such as attention, language use, memory, perception, problem solving, creativity, and reasoning.
Cognition is the "mental action or process of acquiring knowledge and understanding through thought, experience, and the senses". It encompasses all aspects of intellectual functions and processes such as: perception, attention, thought, imagination, intelligence, the formation of knowledge, memory and working memory, judgment and evaluation, reasoning and computation, problem-solving and decision-making, comprehension and production of language. Cognitive processes use existing knowledge and discover new knowledge.
Psycholinguistics or psychology of language is the study of the interrelation between linguistic factors and psychological aspects. The discipline is mainly concerned with the mechanisms by which language is processed and represented in the mind and brain; that is, the psychological and neurobiological factors that enable humans to acquire, use, comprehend, and produce language.
Neurolinguistics is the study of neural mechanisms in the human brain that control the comprehension, production, and acquisition of language. As an interdisciplinary field, neurolinguistics draws methods and theories from fields such as neuroscience, linguistics, cognitive science, communication disorders and neuropsychology. Researchers are drawn to the field from a variety of backgrounds, bringing along a variety of experimental techniques as well as widely varying theoretical perspectives. Much work in neurolinguistics is informed by models in psycholinguistics and theoretical linguistics, and is focused on investigating how the brain can implement the processes that theoretical and psycholinguistics propose are necessary in producing and comprehending language. Neurolinguists study the physiological mechanisms by which the brain processes information related to language, and evaluate linguistic and psycholinguistic theories, using aphasiology, brain imaging, electrophysiology, and computer modeling.
Psychology is an academic and applied discipline involving the scientific study of human mental functions and behavior. Occasionally, in addition or opposition to employing the scientific method, it also relies on symbolic interpretation and critical analysis, although these traditions have tended to be less pronounced than in other social sciences, such as sociology. Psychologists study phenomena such as perception, cognition, emotion, personality, behavior, and interpersonal relationships. Some, especially depth psychologists, also study the unconscious mind.
Anomic aphasia is a mild, fluent type of aphasia where individuals have word retrieval failures and cannot express the words they want to say. By contrast, anomia is a deficit of expressive language, and a symptom of all forms of aphasia, but patients whose primary deficit is word retrieval are diagnosed with anomic aphasia. Individuals with aphasia who display anomia can often describe an object in detail and maybe even use hand gestures to demonstrate how the object is used, but cannot find the appropriate word to name the object. Patients with anomic aphasia have relatively preserved speech fluency, repetition, comprehension, and grammatical speech.
George Armitage Miller was an American psychologist who was one of the founders of cognitive psychology, and more broadly, of cognitive science. He also contributed to the birth of psycholinguistics. Miller wrote several books and directed the development of WordNet, an online word-linkage database usable by computer programs. He authored the paper, "The Magical Number Seven, Plus or Minus Two," in which he observed that many different experimental findings considered together reveal the presence of an average limit of seven for human short-term memory capacity. This paper is frequently cited by psychologists and in the wider culture. Miller won numerous awards, including the National Medal of Science.
Cognitive neuropsychology is a branch of cognitive psychology that aims to understand how the structure and function of the brain relates to specific psychological processes. Cognitive psychology is the science that looks at how mental processes are responsible for the cognitive abilities to store and produce new memories, produce language, recognize people and objects, as well as our ability to reason and problem solve. Cognitive neuropsychology places a particular emphasis on studying the cognitive effects of brain injury or neurological illness with a view to inferring models of normal cognitive functioning. Evidence is based on case studies of individual brain damaged patients who show deficits in brain areas and from patients who exhibit double dissociations. Double dissociations involve two patients and two tasks. One patient is impaired at one task but normal on the other, while the other patient is normal on the first task and impaired on the other. For example, patient A would be poor at reading printed words while still being normal at understanding spoken words, while the patient B would be normal at understanding written words and be poor at understanding spoken words. Scientists can interpret this information to explain how there is a single cognitive module for word comprehension. From studies like these, researchers infer that different areas of the brain are highly specialised. Cognitive neuropsychology can be distinguished from cognitive neuroscience, which is also interested in brain-damaged patients, but is particularly focused on uncovering the neural mechanisms underlying cognitive processes.
The language module or language faculty is a hypothetical structure in the human brain which is thought to contain innate capacities for language, originally posited by Noam Chomsky. There is ongoing research into brain modularity in the fields of cognitive science and neuroscience, although the current idea is much weaker than what was proposed by Chomsky and Jerry Fodor in the 1980s. In today's terminology, 'modularity' refers to specialisation: language processing is specialised in the brain to the extent that it occurs partially in different areas than other types of information processing such as visual input. The current view is, then, that language is neither compartmentalised nor based on general principles of processing. It is modular to the extent that it constitutes a specific cognitive skill or area in cognition.
Bilingualism, a subset of multilingualism, means having proficiency in two or more languages. A bilingual individual is traditionally defined as someone who understands and produces two or more languages on a regular basis. A bilingual individual's initial exposure to both languages may start in early childhood, e.g. before age 3, but exposure may also begin later in life, in monolingual or bilingual education. Equal proficiency in a bilingual individuals' languages is rarely seen as it typically varies by domain. For example, a bilingual individual may have greater proficiency for work-related terms in one language, and family-related terms in another language.
Tip of the tongue is the phenomenon of failing to retrieve a word or term from memory, combined with partial recall and the feeling that retrieval is imminent. The phenomenon's name comes from the saying, "It's on the tip of my tongue." The tip of the tongue phenomenon reveals that lexical access occurs in stages.
In linguistics, lexicalization is the process of adding words, set phrases, or word patterns to a language's lexicon.
Deep dyslexia is a form of dyslexia that disrupts reading processes. Deep dyslexia may occur as a result of a head injury, stroke, disease, or operation. This injury results in the occurrence of semantic errors during reading and the impairment of nonword reading.
Eleanor M. Saffran, an American neuroscientist, was a researcher in the field of Cognitive Neuropsychology. Her interest in Neuropsychology began at the Baltimore City hospitals of Johns Hopkins University, where her research unit focused on neurological patients with language or cognitive impairments. In papers published between 1976 and 1982, Dr. Saffran spelled out the methodological tenets of “cognitive neuropsychology” exemplified in her studies of aphasia, alexia, auditory verbal agnosia, and short-term memory impairment.
Brian Lewis Butterworth FBA is emeritus professor of cognitive neuropsychology in the Institute of Cognitive Neuroscience at University College London, England. His research has ranged from speech errors and pauses, short-term memory deficits, reading and the dyslexias both in alphabetic scripts and Chinese, and mathematics and dyscalculia. He has also pioneered educational neuroscience, notably in the study of learners with special educational needs.
In psychology, a lemma is an abstract conceptual form of a word that has been mentally selected prior to the early stages of speech production. This concept is used to explain how the process of generating speech occurs. In particular, lemmas are seen as the mental representations of words that are organised and retrieved from memory before they are eventually spoken.. A lemma represents a specific meaning but does not have any specific sounds that are attached to it.
The mental lexicon is a component of the human language faculty that contains information regarding the composition of words, such as their meanings, pronunciations, and syntactic characteristics. The mental lexicon is used in linguistics and psycholinguistics to refer to individual speakers' lexical, or word, representations. However, there is some disagreement as to the utility of the mental lexicon as a scientific construct.
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Randi Martin is the Elma Schneider Professor of Psychology at Rice University and Director of the T. L. L. Temple Foundation Neuroplasticity Research Laboratory. With Suparna Rajaram and Judith Kroll, Martin co-founded Women in Cognitive Science in 2001, an organization supported in part through the National Science Foundation's ADVANCE Leadership program. She is a Fellow of the American Association for the Advancement of Science (AAAS) and the Society of Experimental Psychologists (SEP).
Carlo Semenza is an Italian neuropsychologist and cognitive neuroscientist. Carlo Semenza’s research activity mostly contributed to the field of aphasiology, neuropsychology of language, and numerical cognition.