Scientists are studying bats and their use of echolocation to learn more about how bats process information to understand and adapt to the world around them. Echoes of hunting They detect and catch their targets through echolocation, or biosonar, the animal equivalent--and precursor--to man-made sonars. How to see what whales hear: biomedical imaging reveals new insights into marine mammal ears
The faster repolarization of the cardiac action potential causes the tenting of the T waves, and the inactivation of sodium channels causes a sluggish conduction of the electrical wave around the heart, which leads to smaller P waves and widening of the QRS complex.
Perhaps the most well known cause of prominent T-waves is the peaked T-waves seen with hyperkalemia, and they can be confused with the hyperacute T-waves of ACS. There is no exact correlation between serum potassium and onset of ECG changes but about 80% of patients begin to exhibit ECG changes at 6.8-7.0mEq/L.