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The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It consists of nervous tissue and is typically located in the head (cephalization), usually near organs for special senses such as vision, hearing and olfaction. Being the most specialized organ, it is responsible for receiving information from the sensory nervous system, processing those information and the coordination of motor control.
In the psychology subfield of oneirology, a lucid dream is a type of dream wherein a person that is dreaming realizes that they are dreaming during their dream. The capacity to have lucid dreams is a trainable cognitive skill. During a lucid dream, the dreamer may gain some amount of volitional control over the dream characters, narrative, or environment, although this control of dream content is not the salient feature of lucid dreaming. An important distinction is that lucid dreaming is a distinct type of dream from other types of dreams such as prelucid dreams and vivid dreams, although prelucid dreams are a precursor to lucid dreams, and lucid dreams are often accompanied with enhanced dream vividness. Lucid dreams are also distinct state from other lucid boundary sleep states such as lucid hypnagogia or lucid hypnopompia.
Neuroscience is the scientific study of the nervous system, its functions, and its disorders. It is a multidisciplinary science that combines physiology, anatomy, molecular biology, developmental biology, cytology, psychology, physics, computer science, chemistry, medicine, statistics, and mathematical modeling to understand the fundamental and emergent properties of neurons, glia and neural circuits. The understanding of the biological basis of learning, memory, behavior, perception, and consciousness has been described by Eric Kandel as the "epic challenge" of the biological sciences.
Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity and interactions with the surrounding environment. While sleep differs from wakefulness in terms of the ability to react to stimuli, it still involves active brain patterns, making it more reactive than a coma or disorders of consciousness.
The hippocampus is a major component of the brain of humans and other vertebrates. Humans and other mammals have two hippocampi, one in each side of the brain. The hippocampus is part of the limbic system, and plays important roles in the consolidation of information from short-term memory to long-term memory, and in spatial memory that enables navigation. The hippocampus is located in the allocortex, with neural projections into the neocortex, in humans as well as other primates. The hippocampus, as the medial pallium, is a structure found in all vertebrates. In humans, it contains two main interlocking parts: the hippocampus proper, and the dentate gyrus.
The neocortex, also called the neopallium, isocortex, or the six-layered cortex, is a set of layers of the mammalian cerebral cortex involved in higher-order brain functions such as sensory perception, cognition, generation of motor commands, spatial reasoning and language. The neocortex is further subdivided into the true isocortex and the proisocortex.
Yoga nidra or yogic sleep in modern usage is a state of consciousness between waking and sleeping, typically induced by a guided meditation.
Explicit memory is one of the two main types of long-term human memory, the other of which is implicit memory. Explicit memory is the conscious, intentional recollection of factual information, previous experiences, and concepts. This type of memory is dependent upon three processes: acquisition, consolidation, and retrieval.
Neuroplasticity, also known as neural plasticity or brain plasticity, is the ability of neural networks in the brain to change through growth and reorganization. It is when the brain is rewired to function in some way that differs from how it previously functioned. These changes range from individual neuron pathways making new connections, to systematic adjustments like cortical remapping or neural oscillation. Other forms of neuroplasticity include homologous area adaptation, cross modal reassignment, map expansion, and compensatory masquerade. Examples of neuroplasticity include circuit and network changes that result from learning a new ability, information acquisition, environmental influences, pregnancy, caloric intake, practice/training, and psychological stress.
In mammalian brain anatomy, the prefrontal cortex (PFC) covers the front part of the frontal lobe of the cerebral cortex. It is the association cortex in the frontal lobe. The PFC contains the Brodmann areas BA8, BA9, BA10, BA11, BA12, BA13, BA14, BA24, BA25, BA32, BA44, BA45, BA46, and BA47.
Post-concussion syndrome (PCS), also known as persisting symptoms after concussion, is a set of symptoms that may continue for weeks, months, or years after a concussion. PCS is medically classified as a mild traumatic brain injury (TBI). About 35% of people with concussion experience persistent or prolonged symptoms 3 to 6 months after injury. Prolonged concussion is defined as having concussion symptoms for over four weeks following the first accident in youth and for weeks or months in adults.
Age-related memory loss, sometimes described as "normal aging", is qualitatively different from memory loss associated with types of dementia such as Alzheimer's disease, and is believed to have a different brain mechanism.
Mind Quiz, also known as Mind Quiz: Exercise Your Brain or Mind Quiz: Your Brain Coach, is a mental training game for the Nintendo DS and PlayStation Portable. It is similar to Nintendo's Brain Age: Train Your Brain in Minutes a Day! It involves playing different training exercises to measure and improve particular parts of the player's brain, such as one's brain age and its brain stress degree.
John J. Medina is a developmental molecular biologist with special research interests in the isolation and characterization of genes involved in human brain development and the genetics of psychiatric disorders. Medina has spent most of his professional life as an analytical research consultant, working primarily in the biotechnology and pharmaceutical industries on research issues related to mental health.
The ten percent of the brain myth or 90% of the brain myth states that humans generally use only one-tenth of their brains. It has been misattributed to many famous scientists and historical figures, notably Albert Einstein. By extrapolation, it is suggested that a person may 'harness' or 'unlock' this unused potential and increase their intelligence.
Limbic resonance is the idea that the capacity for sharing deep emotional states arises from the limbic system of the brain. These states include the dopamine circuit-promoted feelings of empathic harmony, and the norepinephrine circuit-originated emotional states of fear, anxiety and anger.
Memory improvement is the act of enhancing one's memory. Research on improving memory is driven by amnesia, age-related memory loss, and people’s desire to enhance their memory. Research involved in memory improvement has also worked to determine what factors influence memory and cognition. There are many different techniques to improve memory some of which include cognitive training, psychopharmacology, diet, stress management, and exercise. Each technique can improve memory in different ways.
Memory is the faculty of the mind by which data or information is encoded, stored, and retrieved when needed. It is the retention of information over time for the purpose of influencing future action. If past events could not be remembered, it would be impossible for language, relationships, or personal identity to develop. Memory loss is usually described as forgetfulness or amnesia.
Connectome: How the Brain's Wiring Makes Us Who We Are (2012) is a book by Sebastian Seung. It introduces basic concepts in neuroscience and then elaborates on the field of connectomics, i.e., how to scan, decode, compare, and understand patterns in brain connectivity. The book concludes with musings on cryonics and mind uploading. It was selected by The Wall Street Journal as Top Ten Nonfiction of 2012.
Faculty psychology is the idea that the mind is separated into faculties or sections, and that each of these faculties is assigned to certain mental tasks. Some examples of the mental tasks assigned to these faculties include judgment, compassion, memory, attention, perception, and consciousness. For example, we can speak because we have the faculty of speech or we can think because we have the faculty of thought. Thomas Reid mentions over 43 faculties of the mind that work together as a whole. Additionally, faculty psychology claims that we are born with separate, innate human functions.
References
- ↑ "John Medina (Author of Brain Rules)". Archived from the original on 2019-05-07. Retrieved 2020-06-10.
- ↑ "Exercise boosts Brain Power | Dr Shock MD PhD". 2009-03-29. Archived from the original on 2016-07-08. Retrieved 2020-06-10.
- ↑ Medina, John (2014). Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School (Second ed.). Seattle, WA, U.S.A.: Pear Press. p. 12. ISBN 978-0-99603-260-5.
- 1 2 B. Nemeroff, Charles (2009-02-04). ""Brain Rules | Psychiatric Times"". Archived from the original on 2019-01-31. Retrieved 2020-06-10.
- ↑ "references_all.pdf" (PDF). Archived (PDF) from the original on 2018-03-24. Retrieved 2020-06-10.
- ↑ Passuello, Luciano (2009-03-30). "Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School". litemind.com. Archived from the original on 2019-01-13. Retrieved 2020-06-09.
- ↑ "Paperback Advice & Misc. Books - Best Sellers - Jun 14, 2009 - The New York Times". The New York Times. Archived from the original on 2020-06-09. Retrieved 2020-06-09.
- ↑ "Brain Rules by John Medina · OverDrive: eBooks, audiobooks and videos for libraries". Archived from the original on 2020-06-10. Retrieved 2020-06-10.
- ↑ "Brain Rules by John Medina · OverDrive: eBooks, audiobooks and videos for libraries". Archived from the original on 2020-06-10. Retrieved 2020-06-10.