Brain and Physiological Psychology
One of the strangest side-effects of intense fear is time dilation, the apparent slowing-down of time. It's a common trope in movies and TV shows, like the memorable scene from The Matrix in which time slows down so dramatically that bullets fired at the hero seem to move at a walking pace. In real life, our perceptions aren't keyed up quite that dramatically, but survivors of life-and-death situations often report that things seem to take longer to happen, objects fall more slowly, and they're capable of complex thoughts in what would normally be the blink of an eye. Now a research team from Israel reports that not only does time slow down, but that it slows down more for some than for others. Anxious people, they found, experience greater time dilation in response to the same threat stimuli. An intriguing result, and one that raises a more fundamental question: how, exactly, does the brain carry out this remarkable feat?
The somatic marker hypothesis (SMH) proposes a mechanism by which emotional processes can guide (or bias) behavior , particularly decision-making. [ 1 ] [ 2 ] This hypothesis has been formulated by Antonio Damasio . [ edit ] Hypothesis When individuals make decisions , they must assess the incentive value of the choices available to them, using cognitive and emotional processes. When the individuals face complex and conflicting choices, they may be unable to decide using only cognitive processes, which may become overloaded.
Affiliations Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts, USA. Kevin C Bickart Psychiatric Neuroimaging Research Program, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts, USA. Christopher I Wright, Rebecca J Dautoff, Bradford C Dickerson & Lisa Feldman Barrett Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts, USA.
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Visuospatial ability: Studies
A neurotransmitter is a chemical that is released from neurons in order for signals to be passed from one neuron to another. These chemicals are stored in the terminal buttons of a neuron and are released into the synapse between two neurons in order to carry the signal from one to the other (Davis, S. & Palladino, J. (2007). The neurons terminal buttons do not touch each other but get near the dendrites of the neighboring neurons and pass the neurotransmitter signal to the next neuron. A neuron is electrically charged and when a neuron releases this energy this is called exciting the neuron. When enough energy is released to the dendrites of the neuron, biochemicals or neurotransmitters are released to the surrounding neurons. While some neurons are excited others are inhibited meaning they are in a resting state and not releasing any energy.
Chapter 9 — The Amygdala and the Emotions by Ben Best This installment is something of a digression in my "systematic" attempt to investigate the anatomical basis of mind. Here I investigate in detail a single component of the "Limbic System": the amygdala . The basis of this investigation is a book of scientific papers entitled THE AMYGDALA, Edited by John P.
Graphic Science | Mind & Brain See Inside Cupid's arrows, laced with neurotransmitters, find their marks
Ed Boyden , an Assistant Professor, Biological Engineering, and Brain and Cognitive Sciences at the MIT Media Lab, will give a presentation on using light to study and treat brain disorders at 3.30pm on Wednesday at EmTech 2010 .
BIOS now closed The BIOS Centre closed as a research centre of the School on 31 December 2011. The BIOS research group is moving to King's College London as of January 2012 to become the research arm of a new Department of Social Science, Health and Medicine. Nikolas Rose will also be leaving the LSE at that time to become Head of this new Department.
The Course Kurs zur Vorlesung "Functional Neuroanatomy" von Prof. Brandt an der Uni Osnabrück (Cognitive Science). Mitschriften und Zusammenfassungen im Wiki. The 3 Lessons 1 CNS: - Brain - Spinal Cord, PNS: Somatic nervous system - Connections to sensory organs - Projections to skeletal muscles via motor nerve fibers Autonomous (vegatative) nervous system - Connections to internal organs and glands - Sympathetic system - Parasympathetic system - Enteric system, ... 2 Hydrocephalus can be caused by different mechanisms.