Baby Zoe Is Participating in an Experiment That Is Testing

question 112

Multiple Choice

Baby Zoe is participating in an experiment that is testing whether she has a sense of self.What is the likely procedure in this study?

• A) She is given motor instructions and scored based on how well she completes the instructions.
• B) She and another child are shown the hiding place of some cookies; then, only Zoe watches the cookies get hidden in a different location, and then Zoe is asked where the other child will look for the cookies when they return.
• C) She is secretly dabbed on her nose with a spot of red and then shown her image in a mirror.
• D) She is shown a scale model of a room that contains a hidden doll and then taken to the real room and scored according to whether she can find the doll.

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Definitions:

Motor Controller

A device that regulates the performance of an electric motor by varying parameters such as voltage and current.

PWM

Pulse Width Modulation, a technique used to control the amount of power delivered to an electrical device by varying the duty cycle of a pulse signal.

Four-quadrant

Refers to operating modes of a drive or control system that can handle both positive and negative directions of both power and torque in all four quadrants of operation.

Magnetic Motor

An electric motor that uses magnetic fields generated by electromagnets or permanent magnets to produce rotation.