Free Neurobiological Essays and Papers

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Free Neurobiological Essays and Papers

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    Neurobiological Perspectives on Autism

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    Neurobiological Perspectives on Autism Autism is a pervasive developmental disorder characterized by restricted, repetitive, and stereotyped patterns of behavior, along with severe impairments in reciprocal social interaction, verbal and non-verbal communication, and cognitive development (1,2,3). If the brain is responsible for behavior then it should follow that disordered autistic behaviors should be explainable in terms of brain abnormalities and disordered neurobiological processes. While

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    Neurobiological Mechanisms for Alcoholism

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    Neurobiological Mechanisms for Alcoholism While alcohol could well be considered the most socially acceptable psychoactive drug in our society, the dangers of alcohol abuse and addiction are well known. However, not everyone who uses, or even abuses, alcohol will actually become an alcoholic who is physically dependent on the drug. Not all of the mechanisms that cause one to become addicted to alcohol have been clarified. However, there seem to be two main reasons for alcohol addiction. One

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    Personality: a Neurobiological Model of Extraversion Underlying the question of whether brain equals behavior is the possibility that one's personality may be understood on a neurobiological level. Personality affects how a person will behave in certain situations. Peoples' attitudes towards their environments, their dispositions, personal preferences and dislikes all help determine their everyday actions. If behavior is controlled by the nervous system, these factors which make up a person's

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    The Neurobiological Factors Associated with Depression Depression is a mood disorder that affects approximately ten percent of men and nearly twenty-five percent of women at least once in their lifetime (1). There are several types of clinical depression, such as unipolar depression and bipolar depression. Unipolar depression consists of primarily depressive states while bipolar depression involves a fluctuation between states of depression and mania (2). Some of the most common symptoms of

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    Phantom Limbs: A Neurobiological Explanation Severely injuring a digit or limb can result in unrepentant damage and amputation. However, the painful sensations experienced in regard to that limb do not necessarily cease after amputation. The concept of feeling sensations in a limb that is no longer attached to the body is referred to as feeling a "phantom limb." This phenomenon is experienced by approximately 80%-100% of all patients who have lost a limb (1), and has therefore sparked wide interest

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    Neurobiological Correlates of Mental Imagery to Sensory Perception Understanding the brain's function in the human body involves examining how inputs are processed and outputs are generated. On a reductionist, neuronal level it is often difficult to conceive how such processes lead to our experience of the world. While sensory perception and motor output can be directly traced along neuronal pathways, science is still struggling to understand the roots of such internal, intangible processes

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    aspect of the relationship: neurological disease caused by genetic aberration. There are many well studied and well documented (thought not necessarily well understood) disorders associated with the X chromosome, and a large number of these have neurobiological roots and behavioral manifestations. One such disease is fragile X syndrome. Fragile X syndrome is the most common inherited form of learning disabilities and mental retardation known (1). The disease shows an x-linked inheritance pattern and

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    Meditation and the Brain

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    a "middle view" between the two world-views. Religions, especially Buddhism, stress the role of meditation in one's spiritual growth. Meditation has tangible psychological and physiological benefits, though, which can be explained strictly in neurobiological terms. Understanding of how meditation affects the brain, and, by extension, human behavior, also gives insight into consciousness, the role of feedback loops, and the nature of the I-function. The goal of Buddhist meditation is to detach oneself

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    Déjà vu and the Brain

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    vague sense, often simply as, "Wow, I just got the strangest déjà vu." Because it is so difficult to research and seems to have no deleterious effects on daily and long-term nervous system function, déjà vu has been left largely to the wayside of neurobiological investigation. In all of its ambiguity, déjà vu is still a perplexing phenomenon that has not yet been fully explained. The value of truly understanding the source of déjà vu and its circuitry is in uncovering one of the many keys to the role

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    Should "Ritalin"

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    Should Ritalin, which is a stimulant be used to help cope Attention Deficit Disorder. Attention Deficit Disorder or ADD is a neurobiological disorder. “Neurobiological” refers to the structure and functions of part of the brain. People with ADD may have imbalances or differences in the chemicals used by the brain to control activity, attention, motor skills and other aspects of behavior. Ritalin (methylphenidate) belongs to the class of drugs known as stimulants, which is considered a class II drug

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