Results from Electrophysiological Studies That Have Obtained Modest Correlations Between

question 240

Multiple Choice

Results from electrophysiological studies that have obtained modest correlations between IQ and the speed of the brain's electrical response, suggest that IQ may be related to

• A)neural efficiency
• B)environmental enrichment
• C)neuron size
• D)brain size

---

Definitions:

QRS Segment

A part of the electrocardiogram (ECG) that represents the depolarization of the ventricles before they contract.

S-T Segment

The part of an ECG between the S and T waves, representing the period when the ventricles of the heart are depolarized, which should be flat if the heart muscle is receiving adequate oxygen.

P Wave

The deflection in an electrocardiogram (ECG) that represents atrial depolarization,preceding the contraction of the atria.

Q-T Interval

A measurement on an electrocardiogram (ECG) that represents the time between the start of the Q wave and the end of the T wave, indicative of the duration of ventricular depolarization and repolarization.