Fear Research in Neuroscience
[Online abstract cited: Sodikdjon A. Kodirov, Shuichi Takizawa, Jamie Joseph, Eric R. Kandel, Gleb P. Shumyatsky, and Vadim Y. Bolshakov, "Synaptically released zinc gates long-term potentiation in fear conditioning pathways ," Procedings of the National Academy of Sciences of the United States (PNAS Online Article contributed by Eric R. Kandel, August 16, 2006), Copyright 2006 by the National Academy of Sciences.]
If you are interested in the physiology or chemistry of fear, there is recent research in neuroscience on the chemical interactions possibly related to learned behavior; particularly in relation to the learning of fear. In the abstract to an article titled, "Synaptically released zinc gates long-term potentiation in fear conditioning pathways," the researchers submit that
"Using whole-cell recordings from amygdala slices, we demonstrated that activity-dependent release of chelatable Zn2+ is required for the induction of spike timing-dependent long-term potentiation in cortical input to the amygdala implicated in fear learning."
Fear Reaction
[Online information cited: "Dental Phobia and the Neuropsychology of Fear," Dental Fear Central - Your Hub for Dental Phobia Information. © Dental Fear Central/Various Authors 2004-2006]
According to the Dental Fear Central website, a fear response ("fight-or-flight" response) is characterized by some or all of the following:
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Heart Palpitations
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Sweating
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Trembling/shaking
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Sensations of shortness of breath
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Feeling of choking
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Chest pain
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Nausea or abdominal discomfort
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Feeling dizzy, unsteady, lightheaded or faint
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Chills or hot flushes
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Paresthesia (numbness or tingling)
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Feeling of derealization (world's not real) or depersonalization (being outside one's body)
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Fear of losing control or going crazy
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Fear of dying
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