The MR image is a map of the distribution of the MR signal, and by manipulating the timing of the RF pulses and the delays before detecting the signal MRI is a sensitive tool for detecting subtle changes in brain anatomy. However, mapping brain structure is not the same as mapping brain function.
John Adams was seen and identified as an early leader in the Continental Congress by his peers, and his influence greatly aided the formation of the Declaration of Independence and the cause of separation from Great Britain.
John Adams. John Adams Death. John Adams died on July 4th, 1826, exactly 50 years after signing the Declaration of Independence which he helped to write. On the same day as the death of Thomas Jefferson, John Adams' death was a double blow to the number of remaining Founding Fathers with only one signee of the Declaration of Independence left alive.