When researchers zero in on electrical activity in yet another area, they can tell which parts of commercial messages, if any, are encoded in the experimental subjects' long-term memories.

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To change from a one to a zero, the microprocessor sends electrical currents to change the polarity of the top layer.

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In October year-over-year change in electrical output dropped below zero.

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To change the bit from a one to a zero to write or store new data the microprocessor sends electrical currents through the chip to change the polarity of the top layer.

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