Question

Draw the pathway for a threat conditioning 1. What happens before conditioning? 1. Draw where the tone and visual stimulus connect in the pathway 2. What happens with conditioning? I. Draw the outcome of repeated pairings of the unconditioned stimulus and the conditioned stimulus 2. Make sure you include how long-term potentiation works (describe what changes are happening at the synapse) Draw the associated output pathway in this circuit (assuming the pairing of the image and tone lead you to "freeze" in your seat) 1. Draw how the neuron that has undergone LTP projects. 2. Be sure to draw the region where the command to freeze initiates.

Answer 1

Answer 1. Refer to the diagram

Answer 2.

A. Unconditional stimulus is a natural reaction shown by our nervous system to any action or any effect to our body. Example the hand being pulled back when it comes in contact to any hot object.

Conditional stimulus is a learned behavior which is kept in our records of brain mostly from a unconditional stimulus.

Pairing happens in the second phase when the nuetral stimulus is paired with the unconditional stimulus . After pairing with the unconditional stimulus, the reaction becomes known to the brain. For example the when any tone is heard,the nuetral stimulus for it now becomes a unconditional stimulus.

After this the previous nuetral stimulus starts to evoke the same response at this point of time the response is known as a conditional stimulus.

B. Long term potentiation is continuous strengthening of synapses based on the recent activities. In this there is a intense stimulation for the presynaptic neuron after which amplitude of the post synaptic neuron response increases.

Answer 3. Refer to text written in the picture attached.
0000000000000 Anosmer 3: The crauit in the diagram The central amygdaloid nucleus projects to hubothalamic sites and several brain show nuclei that participate in the stress and Jeas responses like freezing... 0 ---------------------------------------------------------

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