flight reactions aren’t rational for stress over a class‚ but regardless‚ our bodies have the same psychological reaction to a test as it would to the threat of a grizzly bear (Scott). The limbic system‚ or the brain’s emotional center‚ contains the amygdala. This structure acts as an alarm system to screen any threats and communicates it to the rest of the brain. Comparatively‚ the sympathetic nervous system (SNS) releases chemicals such as adrenalin and noradrenalin to prepare the body to fight off
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PSC 101 EXAM 2 Study Guide Part 1- Sensory Systems 1. Sound can best be thought of as a) compression of air molecules by an object. b) changes in air pressure produced by the vibration of an object. c) particles of energy that travel at better than 20 miles per hour. d) packets of energy. e) expansion of air molecules produced by an object as it moves through air. 2. The loudness of a sound is related to a) the amplitude of sound vibration. b) the distance between the successive
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prevent relapse. Specifically‚ one finding in the animal studies was the cravings for the cocaine were stronger as time continues rather than lessening over time. The motivation to quit a drug substance is managed in the primitive areas of the brain‚ amygdala and hippocampus‚ associated with memory and learning. Notably our memories are efficient when our neurons fire together and link together and there is a maladaptation when our neurons fire out of sync and then they do not link together. These areas
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in the same place. With physical pain an injury occurs‚ and the damaged area triggers nerve cells to send signals of anguish to the brain. The signals received are then very rapidly processed in the automatic‚ subconscious part of the brain. The amygdala and limbic structures of the brain are in place to alert us in case of danger. If an injury does take place the cortex of the brain is triggered by these structures‚ resulting in the registration of pain to the area of distress. Thus pain is a response
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Development 1. What is habituation? How is it used to study infant abilities? 2. At birth‚ babies have the abilities to 1) recognize patterns‚ 2) respond to their mother’s voices‚ 3) learn. We saw three videos illustrating the research behind these claims. What was the evidence that babies can learn events? 3. What is a cross-sectional study? What is a longitudinal study? What is a cohort? 4. What emotions are found in babies at birth? What emotions appear between 2-4 months?
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Child maltreatment‚ including physical abuse‚ sexual abuse‚ and psychological abuse‚ has deleterious effect on children in their childhood and even in adulthood. For example‚ youth with psychological maltreatment (PM) background elevates the rates of developing inattention‚ aggression‚ noncompliance‚ hyperactivity‚ and delinquency ((Caples & Barrera‚ 2006; Hart‚ Brassard‚ & Karlson‚ 1996; Manly‚ Kim‚ Rogosch‚ & Cicchetti‚ 2001). Nearly 3 million U.S. children experienced some form of maltreatment
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The New York Times article “The New Science of Mind” written by Eric R. Kandel‚ focuses on the idea that scientists are starting to understand the underlying basis of psychiatric diseases. The article starts off with an explanation of a shared frustration that many people experience over the belief that we will never understand the exact reason why psychiatric diseases occur. The article‚ however‚ takes a hopeful spin and explains how scientists are starting to understand the neural circuit that
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1. Name each of the three primary embryonic brain vesicles. Use clinical terminology to name the resulting adult brain region. Prosencephalon (forebrain) - becomes telencephalon (endbrain) and diencephalon (interbrain) Mesencephalon (midbrain) - remains undividedd Rhombencephalon (hindbrain) - becomes metencephalon (afterbrain) and myelencephalon (spinal brain) 2. What is the advantage of having a cerebrum that is highly convoluted? What term is used to indicate its crooves? Its outward folds
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Both sexes develop differently in parts of the brain and thus are enabled to reason‚ act‚ and behave in different ways. Men possess a larger amygdala‚ the center of emotions such as anger and fear‚ in the brain. This increases the probability of men “engaging in risky and aggressive behavior (Brizendine 2007)”. In women the “insula‚ which affects intuition and empathy‚ is larger (Brizendine 2007)”
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In the periphery‚ it is found on autonomic neurons and on neurons of the sensory and enteric nervous system. In the CNS‚ the 5-HT3 receptor has been localized in the area postrema‚ nucleus tractus solitarii‚ nucleus vaudatus‚ nucleus accumbens‚ amygdala‚ hippocampus‚ entorhinal‚ frontal‚ cingulate cortex‚ and in the dorsal horn ganglia. Further extraneuronal locations include among others lymphocytes‚ monocytes‚ and foetal tissue. 5-HT3 receptors modulate the release of neurotransmitters and neuropeptides
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