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Question: area-restricted search

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  1. Question: area-restricted search • After spending 30 minutes on a food patch, a nematode (C. elegans) is transferred to an empty patch containing no food. Would the frequency of high-angle turns likely be greater:a) during the first 5 minutes on the empty patchb) after 30 minutes on the empty patch ANSWER: a) during the first 5 minutes MCB 419 Exam II practice questions

  2. ANSWER: yes, because the center-of-mass falls within the base-of-support. Question: artificial insect • Assuming the center-of-mass is at the location marked by the X, is the following leg placement pattern stable? square = leg down no-square = leg up X MCB 419 Exam II practice questions

  3. pacemaker (cmd: foot up, swing forward) forward angle sensor forward swing motor neuron FS FAS P sensory hairs FT BAS leg movement foot down backward angle sensor BS backward swing motor neuron Question: artificial insect In this model of insect leg control, the ‘backward swing’ (BS) motor neuron is primarily excited by: a) backward angle sensor (BAS) b) forward swing (FS) motor neuron c) forward angle sensor (FAS) d) pacemaker (P) command neuron ANSWER: c) forward angle sensor (FAS) MCB 419 Exam II practice questions

  4. Question: action selection Given the following set of conditions: TRUE:daytime, hungry, near_food, antenna_contact FALSE: food_in_mouthwhich action would be selected by the following Matlab code? if (daytime) wander; end a) wander b) swallow_food c) follow_edge d) food_chemotaxis if (hungry && food_in_mouth) swallow_food; elseif (antenna_contact) follow_edge; elseif (near_food && hungry) food_chemotaxis; end ANSWER: c) follow_edge MCB 419 Exam II practice questions

  5. Question: vertebrate brain organization ANSWER: b • Which structure is the optic tectum? d c b a MCB 419 Exam II practice questions

  6. Question: vertebrate brain organization • The optic tectum is part of the:a) hindbrainb) midbrainc) diencephalond) telencephalon ANSWER: b) midbrain MCB 419 Exam II practice questions

  7. Question: hierarchical organization • In the rat defense system, the neural circuitry primarily responsible for mediating a startle response to a loud noise would be found in the:a) hindbrainb) midbrainc) diencephalond) telencephalon ANSWER: a) hindbrain MCB 419 Exam II practice questions

  8. Question: toad predator-prey system square The neuron to the right responds best to large ‘square’ and ‘anti-worm’ stimuli. Responses to ‘worm’ stimuli are not very sensitive to stimulus size. A neuron like this would most likely be found in: a) retina b) spinal cord c) thalamus d) tectum anti-worm worm 2 4 8 ANSWER: c) thalamus MCB 419 Exam II practice questions