A Science Odyssey: People and Discoveries: Roger Sperry. Psychobiologist Roger Sperry discovered that human beings are of two minds. He found that the human brain has specialized functions on the right and left, and that the two sides can operate practically independently.
What is the split-brain theory?
This model asserts that a split brain produces one conscious agent who experiences two parallel, unintegrated streams of information. In addition to changing our view of the split-brain phenomenon, this new model also poses a serious challenge for current dominant theories of consciousness.
What did Michael Gazzaniga contribution to psychology?
Through his extensive work with split-brain patients, Gazzaniga has made important advances in the understanding of functional lateralization in the human brain and how the cerebral hemispheres communicate with one another.
What was the aim of Sperry’s study?
The aim of Sperry (1968) was to show the independent streams of conscious awareness possessed by each hemisphere and to show how each hemisphere has its own memories.
What did Roger Sperry contribution to psychology? – Related Questions
What method did Sperry use?
Sperry (1968) used a procedure where an image or word was projected to the patient’s right visual field (which would be processed by the left hemisphere) and another image was projected to the left visual field (processed by the right hemisphere).
How does Sperry link to the key theme?
How does Sperry’s study link to its key theme? It demonstrated the importance of the corpus callosum as a communication pathway between the left and right hemisphere and provided evidence of the different functions each hemisphere performs.
What do the studies of Sperry and Gazzaniga tell us about consciousness?
In their canonical work, Sperry and Gazzaniga discovered that split-brain patients can only respond to stimuli in the right visual field with their right hand and vice versa. This was taken as evidence that severing the corpus callosum causes each hemisphere to gain its own consciousness.
Was sperrys study reliable?
Reliability. Sperry found general trends in the lateralisation of brain function in the split-brain participants, and the similarities from split-brain participant to split-brain participant suggest that some of these findings are reliable.
What was Sperry and Gazzaniga’s key finding?
Conclusion: The findings of Sperry and Gazzaniga’s research highlights a number of key differences between the two hemispheres. Firstly, the left hemisphere is dominant in terms of speech and language. Secondly, the right hemisphere is dominant in terms of visual-motor tasks.
In what decade did Sperry do his research?
The surgical and experimental techniques Sperry developed from the late 1940s laid the groundwork for much more specialized explorations of the mental functions carried out in different areas of the brain.
What did Roger Sperry won the Nobel Prize for?
Sperry won half the prize for his success in demonstrating that the hemispheres of the brain are highly specialized and that many higher functions are centered in the right hemisphere. Hubel and Wiesel shared the other half of the prize for their research on information processing in the visual system.
Who is Dr Roger W Sperry?
Roger Wolcott Sperry (August 20, 1913 – April 17, 1994) was an American neuropsychologist, neurobiologist, cognitive neuroscientist, and Nobel laureate who, together with David Hunter Hubel and Torsten Nils Wiesel, won the 1981 Nobel Prize in Physiology and Medicine for his work with split-brain research.
Who is the proponent of split-brain theory?
Brain Theory. In the mid-1800’s, Paul Broca proposed the classic hemispheric dominance theory that particular characteristics were associated with each side of the brain. Initially, researchers believed the left side of the brain had the higher faculties and was more dominant.
Who is the father of brain dominance theory?
William Edward Herrmann (1922 – December 24, 1999) was an American creativity researcher and author, known for his research in creative thinking and whole-brain methods. He is considered the “father of brain dominance technology.”
Who are split-brain patients psychology?
The term “split-brain” refers to patients in whom the corpus callosum has been cut for the alleviation of medically intractable epilepsy.
Who created mind theory?
The theory was proposed in its modern form by Hilary Putnam in 1967, and developed by his PhD student, philosopher, and cognitive scientist Jerry Fodor in the 1960s, 1970s, and 1980s.
Who is the father of unconscious mind?
Sigmund Freud (1856—1939) Sigmund Freud, the father of psychoanalysis, was a physiologist, medical doctor, psychologist and influential thinker of the early twentieth century.
What is theory of mind in psychology?
Theory of mind (ToM) is defined as the ability to understand and take into account another individual’s mental state or of “mind-reading” (Premack and Woodruff, 1978).
Who discovered the unconscious mind?
Sigmund Freud and his followers developed an account of the unconscious mind. It plays an important role in psychoanalysis. Freud divided the mind into the conscious mind (or the ego) and the unconscious mind. The latter was then further divided into the id (or instincts and drive) and the superego (or conscience).
Who understood psychology as the study of the unconscious?
In Sigmund Freud’s psychoanalytic theory of personality, the unconscious mind is defined as a reservoir of feelings, thoughts, urges, and memories that outside of conscious awareness.
