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Dual Consciousness
Dual consciousness (also known as dual mind or divided consciousness) is a hypothesis in neuroscience. It is proposed that it is possible that a person may develop two separate consciousness, conscious entities within their one brain after undergoing a corpus callosotomy. The idea first began circulating in the neuroscience community after some split-brain patients exhibited alien hand syndrome (AHS), which led some scientists to believe that there must be two separate consciousnesses within the brain's left and right hemispheres in competition with one another once the corpus callosum is severed. The idea of dual consciousness has caused controversy in the neuroscience community. No conclusive evidence of the proposed phenomenon has been discovered. Background During the first half of the 20th century, some neurosurgeons concluded that the best option of treating severe epilepsy was by severing the patient's corpus callosum. The corpus callosum is the primary communication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypothesis
A hypothesis (: hypotheses) is a proposed explanation for a phenomenon. A scientific hypothesis must be based on observations and make a testable and reproducible prediction about reality, in a process beginning with an educated guess or thought. If a hypothesis is repeatedly independently demonstrated by experiment to be true, it becomes a scientific theory. In colloquial usage, the words "hypothesis" and "theory" are often used interchangeably, but this is incorrect in the context of science. A working hypothesis is a provisionally-accepted hypothesis used for the purpose of pursuing further progress in research. Working hypotheses are frequently discarded, and often proposed with knowledge (and warning) that they are incomplete and thus false, with the intent of moving research in at least somewhat the right direction, especially when scientists are stuck on an issue and brainstorming ideas. A different meaning of the term ''hypothesis'' is used in formal l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurological Disorder
Neurological disorders represent a complex array of medical conditions that fundamentally disrupt the functioning of the nervous system. These disorders affect the brain, spinal cord, and nerve networks, presenting unique diagnosis, treatment, and patient care challenges. At their core, they represent disruptions to the intricate communication systems within the nervous system, stemming from genetic predispositions, environmental factors, infections, structural abnormalities, or degenerative processes. The impact of neurological disorders is profound and far-reaching. Conditions like epilepsy create recurring seizures through abnormal electrical brain activity, while multiple sclerosis damages the protective myelin covering of nerve fibers, interrupting communication between the brain and body. Parkinson's disease progressively affects movement through the loss of dopamine-producing nerve cells, and strokes can cause immediate and potentially permanent neurological damage by inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Of Mind
''The Society of Mind'' is both the title of a 1986 book and the name of a theory of natural intelligence as written and developed by Marvin Minsky. In his book of the same name, Minsky constructs a model of human intelligence step by step, built up from the interactions of simple parts called ''agents'', which are themselves mindless. He describes the postulated '' interactions'' as constituting a "society of mind", hence the title. The book The work, which first appeared in 1986, was the first comprehensive description of Minsky's "society of mind" theory, which he began developing in the early 1970s. It is composed of 270 self-contained essays which are divided into 30 general chapters. The book was also made into a CD-ROM version. In the process of explaining the society of mind, Minsky introduces a wide range of ideas and concepts. He develops theories about how processes such as language, memory, and learning work, and also covers concepts such as consciousness, the se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marvin Minsky
Marvin Lee Minsky (August 9, 1927 – January 24, 2016) was an American cognitive scientist, cognitive and computer scientist concerned largely with research in artificial intelligence (AI). He co-founded the Massachusetts Institute of Technology's AI laboratory and wrote extensively about AI and philosophy. Minsky received many accolades and honors, including the 1969 Turing Award. Early life and education Marvin Lee Minsky was born in New York City, to Henry, an eye surgeon, and Fannie (Reiser), a Zionism, Zionist activist. His family was Jewish. He attended the Ethical Culture Fieldston School and the Bronx High School of Science. He later attended Phillips Academy in Andover, Massachusetts, Andover, Massachusetts. He then served in the United States Navy, US Navy from 1944 to 1945. He received a B.A. in mathematics from Harvard University in 1950 and a Doctor of Philosophy, Ph.D. in mathematics from Princeton University in 1954. His doctoral dissertation was titled "Theory of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Gustav Jung
Carl Gustav Jung ( ; ; 26 July 1875 – 6 June 1961) was a Swiss psychiatrist, psychotherapist, and psychologist who founded the school of analytical psychology. A prolific author of over 20 books, illustrator, and correspondent, Jung was a complex and convoluted academic, best known for his concept of archetypes. Alongside contemporaries Freud and Adler, Jung became one of the most influential psychologists of the early 20th century and has fostered not only scholarship, but also popular interest. Jung's work has been influential in the fields of psychiatry, anthropology, archaeology, literature, philosophy, psychology, and religious studies. He worked as a research scientist at the Burghölzli psychiatric hospital in Zurich, under Eugen Bleuler. Jung established himself as an influential mind, developing a friendship with Sigmund Freud, founder of psychoanalysis, conducting a lengthy correspondence paramount to their joint vision of human psychology. Jung is widely re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Right-handed
In human biology, handedness is an individual's preferential use of one hand, known as the dominant hand, due to and causing it to be stronger, faster or more Fine motor skill, dextrous. The other hand, comparatively often the weaker, less dextrous or simply less subjectively preferred, is called the non-dominant hand. In a study from 1975 on 7,688 children in US grades 1–6, left handers comprised 9.6% of the sample, with 10.5% of male children and 8.7% of female children being left-handed. Overall, around 90% of people are right-handed. Handedness is often defined by one's writing hand. It is fairly common for people to prefer to do a particular task with a particular hand. Cross-dominance, Mixed-handed people change hand preference depending on the task. Not to be confused with handedness, ambidexterity describes having equal ability in both hands. Those who learn it still tend to favor their originally dominant hand. Natural ambidexterity (equal preference of either hand) d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Premotor Cortex
The premotor cortex is an area of the motor cortex lying within the frontal lobe of the brain just anterior to the primary motor cortex. It occupies part of Brodmann's area 6. It has been studied mainly in primates, including monkeys and humans. The functions of the premotor cortex are diverse and not fully understood. It projects directly to the spinal cord and therefore may play a role in the direct control of behavior, with a relative emphasis on the trunk muscles of the body. It may also play a role in planning movement, in the spatial guidance of movement, in the sensory guidance of movement, in understanding the actions of others, and in using abstract rules to perform specific tasks. Different subregions of the premotor cortex have different properties and presumably emphasize different functions. Nerve signals generated in the premotor cortex cause much more complex patterns of movement than the discrete patterns generated in the primary motor cortex. Structure The pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supplementary Motor Area
The supplementary motor area (SMA) is a part of the motor cortex of primates that contributes to the control of movement. It is located on the midline surface of the hemisphere just in front of (anterior to) the primary motor cortex leg representation. In monkeys, the SMA contains a rough map of the body. In humans, the body map is not apparent. Neurons in the SMA project directly to the spinal cord and may play a role in the direct control of movement. Possible functions attributed to the SMA include the postural stabilization of the body, the coordination of both sides of the body such as during bimanual action, the control of movements that are internally generated rather than triggered by sensory events, and the control of sequences of movements. All of these proposed functions remain hypotheses. The precise role or roles of the SMA is not yet known. For the discovery of the SMA and its relationship to other motor cortical areas, see the main article on the motor cortex. Subre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brain Tumors
A brain tumor (sometimes referred to as brain cancer) occurs when a group of cells within the brain turn cancerous and grow out of control, creating a mass. There are two main types of tumors: malignant (cancerous) tumors and benign (non-cancerous) tumors. These can be further classified as primary tumors, which start within the brain, and secondary tumors, which most commonly have spread from tumors located outside the brain, known as brain metastasis tumors. All types of brain tumors may produce symptoms that vary depending on the size of the tumor and the part of the brain that is involved. Where symptoms exist, they may include headaches, seizures, problems with vision, vomiting and mental changes. Other symptoms may include difficulty walking, speaking, with sensations, or unconsciousness. The cause of most brain tumors is unknown, though up to 4% of brain cancers may be caused by CT scan radiation. Uncommon risk factors include exposure to vinyl chloride, Epstein–Bar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alzheimer's Disease
Alzheimer's disease (AD) is a neurodegenerative disease and the cause of 60–70% of cases of dementia. The most common early symptom is difficulty in remembering recent events. As the disease advances, symptoms can include problems with language, disorientation (including easily getting lost), mood swings, loss of motivation, self-neglect, and behavioral issues. As a person's condition declines, they often withdraw from family and society. Gradually, bodily functions are lost, ultimately leading to death. Although the speed of progression can vary, the average life expectancy following diagnosis is three to twelve years. The causes of Alzheimer's disease remain poorly understood. There are many environmental and genetic risk factors associated with its development. The strongest genetic risk factor is from an allele of apolipoprotein E. Other risk factors include a history of head injury, clinical depression, and high blood pressure. The progression of the di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhawn Joseph
The ''Journal of Cosmology'' is a website that describes itself as a "scientific journal". It has been criticized for lacking oversight and proper peer-review, and promoting fringe theories. It was established in 2009 by neuroscientist Rhawn Joseph; as of 2023, Rudolph Schild is the editor-in-chief. Scope The ''Journal of Cosmology'' is an online publication that contains material on a wide range of subjects in cosmology, astronomy, astrobiology, and Earth and planetary sciences. Writing on biology, geology, physics, chemistry, extinction, the origin and evolution of life, panspermia and Martian colonization and exploration has all been published. Reliability The quality of the claimed peer review has been heavily criticized. The website promotes fringe viewpoints and speculative viewpoints on astrobiology, astrophysics, and quantum physics. Skeptical blogger and biologist PZ Myers said that "it isn't a real science journal at all, but hewebsite of a small group... obse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antti Revonsuo
Antti Revonsuo is a Finnish cognitive neuroscientist, psychologist, and philosopher of mind. His work seeks to understand consciousness as a biological phenomenon. He is one of a small number of philosophers running their own laboratories. Currently, Revonsuo is a professor of cognitive neuroscience at the University of Skövde in Sweden and of psychology at the University of Turku in Finland. His work focuses on altered states of consciousness in general and dreaming in particular. He is best known for his Threat Simulation Theory, which – in the tradition of evolutionary psychology – states that dreams serve the biological function of rehearsing possibly threatening situations in order to aid survival, and his advocacy of the dreaming brain as a model of consciousness. Biography Revonsuo completed his graduate education at the University of Turku, receiving his master's degree in Psychology in 1990, a Licentiate in Philosophy in 1991, and finally a Ph.D. in Psychology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
