Psy 123_Lec 13 Emotion

a more detailed version is processed by the visual

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Unformatted text preview: autonomic response.! A more detailed version is processed by the visual cortex then to the amygdala, and identifies the stimulus as a snake, increasing the autonomic response.! This emotionally-laden information is relayed to the orbitofrontal cortex (ventromedial) where it is evaluated for an appropriate response.! Suggests there are 2 pathways that lead to this fear response in humans. These 2 pathways are important for the combined bodily response and … in humans. Only need a rough stimulus in order to be startle/excited. The visual stimulus has to be processes through the eyes > thalamus > visual cortex. In the thalamus, it (the rough approximation) branches out and goes to the amygdala and bypassing the visual cortex. It could be enough to start a bodily response. At the same time that is happening though, you are still processing this thing visually (150 ms+) and then goes to PFC in order to make sense out of it. During the time the visual info passes through the temporal lobe, it can be sent to the amygdala as well. So the amygdala is getting 2 different inputs, one rough approximation for something coiled on the ground that is going to start a physiological response. And then the one coming the temporal lobe is going to be sending the amygdala information about what that thing is. Then both will be sent to the PFC. LeDoux, 1994! Pathways involved in a fearful response in humans! The stimulus comes in, is processing by the cortex, and temporal lobe make a object recognition. It is slow but thorough. High-road! slow! thorough! Low-road! Quick & dirty! Goes straight to the amygdala and a very rough approximation. When you see a coil, you get a physiological reaction right away. However, if you recognize it is just coiled piece of rope, the system will still get a startle response, but then you will calm down and the initial response will stop. The low road from an evolutionary standpoint gives us a little more time to react. The OBF is very important in all these in that...
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This note was uploaded on 01/18/2014 for the course PSY 123 taught by Professor Staff during the Fall '11 term at UCSB.

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