Dopamine Regulates the Motivation to Act‚ Study Shows The widespread belief that dopamine regulates pleasure could go down in history with the latest research results on the role of this neurotransmitter. Researchers have proved that it regulates motivation‚ causing individuals to initiate and persevere to obtain something either positive or negative. The neuroscience journal Neuron publishes an article by researchers at the Universitat Jaume I of Castellón that reviews the prevailing theory on
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"The foundation for much of what we know about sleep was gathered approximately 40 years ago by researcher‚ Michel Jouvet. This French scientist studied the effects of gross brain lesions and brain transections on sleep behavior and related phenomena. It was Jouvet who first suggested that a brainstem region is responsible for the initiation of events that result in the stage of sleep called REM sleep. REM sleep is a stage associated with rapid eye movements‚ a high degree of brain wave activity
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A muscle is a group of cells called fibers‚ and are generally quite big. One muscle fiber has a large amount of myofibrils‚ which are muscle proteins in the shape of cylinders. These myofibrils contain two different types of filaments‚ which run along the axis of the fiber in hexagonal patterns. The two types of filaments are thick and thin filaments. Every thick filament is surrounded by six thin filaments. Both thick and thin filaments are attached to a structure called the Z-line. The Z-line runs
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Scientific Investigation Paul Devlin The Treatment of Depression Current Methods and Groundbreaking New Treatments Introduction Depression is a very real and serious mental health condition which statistics show will affect 1 in 5 people‚ either directly or through a friend or relative suffering from the condition. Several neuroscience and genetic investigations clearly demonstrate that depression is a disorder of the brain‚ one which modern imaging techniques can reveal. Where in the past
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“A Need for an Understanding of Sports Psychology: A Consideration” My Perception of Philosophy within Strength and Conditioning S&C coaches are required to have and often asked what their “Philosophy” is. I describe my philosophy as a set of skills that I have acquired over time via scientific study‚ fundamental analysis‚ sporting anecdotes‚ personal experience and belief that I execute in order to achieve agreed results of physically preparing an athlete for a positive outcome of a sport
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The Associations between Anxiety and Psychological and Biological Factors Many people believe that anxiety exists in the occasions that give you a lot of stress. Presence of anxiety is mainly due to the environmental elements. In my opinion‚ anxiety is a result of imbalance of internal states of human being rather that purely caused by environmental factors. The external environment only triggers the disequilibrium of mental status but not all the person will experience anxiety under a same stressful
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Foundations of Psychology Paper PSY/300 May 13‚ 2012 Psychology encompasses a vast range of different thoughts‚ theories‚ and biological foundations on behavior of why people act the way they do. Once a part of philosophy‚ psychology has developed into several schools of thought that describe the theories some of these individuals use to approach what they are observing from different people and their actions. Some of these theories do have conflictions from others‚ but all have a good amount
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M14_MARI6128_10_SE_CH14.QXD 1/19/11 5:58 PM Page 193 NAME_________________________________ LAB TIME/DATE ________________________ EXERCISE R E V I E W S H E E T 14 Key: a. b. endomysium epimysium fascicle fiber myofibril myofilament perimysium sarcolemma sarcomere sarcoplasm tendon Microscopic Anatomy and Organization of Skeletal Muscle Skeletal Muscle Cells and Their Packaging into Muscles 1. Use the items in the key to correctly identify the structures described below
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The incidence‚ unfortunately‚ is on an upward trend. Psychological function is influenced strongly by blood levels of neurotransmitters such as noradrenaline‚ serotonin and dopamine. Depression has been associated with a depletion of neurotransmitters such as serotonin. Physical exercise increases the levels of central nervous system neurotransmitters. Studies in older teenagers tend to support the benefits of physical activity in treating adolescent depression. Improvement in depression
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the synapses with numerous others. As a result‚ small electrical currents are discharged by the neurons in a bid to discharge neurotransmitters of the synaptic degree to allow communication with one another. Numerous neuromodulators or neurotransmitters are established to have a responsibility in the neuronal excitation. Nonetheless‚ the main excitatory neurotransmitters inside the brain are the L-glutamate (Engel‚ 2013). As such‚ the abnormal operations of the L-glutamate could lead to a seizure
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