Question

The neural circuit shown below has 7 neurons (5 are labelled A-E), and 6 synapses (4 are labelled 1-4). Note that the synapses made by 'B' and 'C' are Excitatory (indicated by the + signs). Assume all thresholds = 1, all excitatory outputs = +1 and all inhibitory outputs = -1. None of the neurons are tonically active. The circuit has the following characteristics: • If none of the neurons labelled A-D are active then 'E' will not have an action potential (AP). • If only 'A' has an AP, 'E' WILL have an action potential • If 'A' and 'B' have an AP at the same time, 'E' WILL have an action potential • if 'A', 'B' and 'C' all have an AP at the same time, 'E' will NOT have an action potential. • If 'A', 'B', 'C' and 'D' all have an AP at the same time, 'E' WILL have an action potential. Indicate for each synapse 1-4 whether it is excitatory or inhibitory Inhibitory Excitatatory Synapse 1 Synapse 2 Synapse 3 Synapse 4

          The neural circuit shown below has 7 neurons (5 are labelled A-E), and 6 synapses (4 are labelled 1-4). Note that the synapses made by 'B' and 'C' are Excitatory (indicated by the + signs). Assume all thresholds = 1, all excitatory outputs = +1 and all inhibitory outputs = -1. None of the neurons are tonically active.

The circuit has the following characteristics:

• If none of the neurons labelled A-D are active then 'E' will not have an action potential (AP).
• If only 'A' has an AP, 'E' WILL have an action potential
• If 'A' and 'B' have an AP at the same time, 'E' WILL have an action potential
• if 'A', 'B' and 'C' all have an AP at the same time, 'E' will NOT have an action potential.
• If 'A', 'B', 'C' and 'D' all have an AP at the same time, 'E' WILL have an action potential.

Indicate for each synapse 1-4 whether it is excitatory or inhibitory

Inhibitory Excitatatory
Synapse 1
Synapse 2
Synapse 3
Synapse 4

The neural circuit shown below has 7 neurons (5 are labelled A-E), and 6 synapses (4 are labelled 1-4). Note that the synapses made by 'B' and 'C' are Excitatory (indicated by the + signs). Assume all thresholds = 1, all excitatory outputs = +1 and all inhibitory outputs = -1. None of the neurons are tonically active.

The circuit has the following characteristics:

• If none of the neurons labelled A-D are active then 'E' will not have an action potential (AP).
• If only 'A' has an AP, 'E' WILL have an action potential
• If 'A' and 'B' have an AP at the same time, 'E' WILL have an action potential
• if 'A', 'B' and 'C' all have an AP at the same time, 'E' will NOT have an action potential.
• If 'A', 'B', 'C' and 'D' all have an AP at the same time, 'E' WILL have an action potential.

Indicate for each synapse 1-4 whether it is excitatory or inhibitory

Inhibitory Excitatatory
Synapse 1
Synapse 2
Synapse 3
Synapse 4

Added by Juan Antonio B.

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