When measuring the speed of thought, the time it takes a human brain to recognize a picture is one fourth of a second. Much more time and thought goes into complex problems with unknown solutions slowing our logical mind even further when over involved and interefering in psychic reception.
While on the other hand, at the quantum level for example in photosynthesis, green plants are able to transfer solar energy into their molecular reaction centers for conversion into chemical energy with nearly 100-percent efficiency. The transfer of the sun based energy takes place almost instantaneously so that almost no energy is wasted as heat, and how is this accomplished ? The answer lies in the speed of quantum transfer and bio-mechanics. This wavelike signal explains the extreme efficiency of the energy transfer because it enables a system to simultaneously sample all the potential energy pathways need then choose the most efficient ones for the task.The same is true in the human quantum process and psychic impressions.
The detection of “quantum beating” signals, are measured as inbound waves thru Electronic spectroscopy measurements made on a femtosecond (millionths of a billionth of a second) time-scale with a series of 3 lasers. They showed these oscillations meeting and interfering constructively, forming wavelike patterns of energy that can explore all potential energy pathways simultaneously and reversibly, meaning they can retreat from wrong pathways, and find the open line at quantum speed in plants and green sulfur bacteria's light harvesting proteins.
Similarly in psychic impressions then by the same token, little energy is wasted also in gathering the impression, any effects of mental tiring are purely of normal time and space. Making this tidbit of new information another glaring example of why any slow paced logical thinking or external noise needs to stay out of the equation, among the higher life forms. It only interferes to create confusion in the reception of a non-local or psychic quantum signal. I would also hypothesize the same interference and drop in the quantum signal would happen to simple life forms, and is created among the leaves of plants and tree's on a blustery day by external forces.
Read more on the quantum process in these wikipedia articles below.http://en.wikipedia.org/wiki/Magnetic_flux_quantumhttp://en.wikipedia.org/wiki/Quantum_state