There is an informative book I read: Incognito: the secret lives of the brain by David Eagleman which I recommend to anyone who is interested in how our brains function. Here are few excerpts I found interesting.
The brain is an amazing organ. The brain is three pounds of the most complex material we have discovered in the universe. This is the mission control center that drives the whole operation. Your brain is made up of cells called neurons – hundreds of billions of them. Each one of these cells is as complicated as a city. Each cell sends electrical pulses to other cells up to hundreds of times per second. The cells are connected to one another in a network of staggering complexity. A typical neuron makes about 10,000 connections to neighboring neurons. This means there are as many connections in a single cubic centimeter of brain tissue as there are stars in the Milky Way galaxy.
Contrary to our thinking we are not purely rational creatures. Our brains run mostly on autopilot and the conscious mind has little access to the factory that runs below it. As Carl Jung put it,”In each of us there is another whom we do not know” or as Pink Floyd has put it in song lyrics: “There’s someone in my head, but it’s not me.”
Since most of our function is done without rational involvement we’ve all experienced the situation where we have done something many times, but if we stop to think about what we are doing we began to fumble. In trial, as soon as we begin to think about what we are doing, or how we appear to others or what we are saying we start to get nervous and flustered. I thought this poem illustrated this fact. It’s named “The puzzled centipede.”
“A centipede was happy quite, until a frog in fun said, pray tell which leg comes after which? This raised her mind to such a pitch, she lay distracted in the ditch not knowing how to run.”
One of the interesting research tests that demonstrated how the subconscious mind works independent of the rational mind involved playing cards. In 1997 neurosciencetists conducted research with the subject being connected to a device to measure nervous system reaction. They gave the subjects four decks of cards and asked them to choose one card at a time. Each card represented a gain or loss of money. Unknown to the subjects the decks had been stacked either favorable or unfavorably to winning. It took the subjects an average of 25 draws of cards from the decks to realize which decks were good or bad for them and express this at a rational level. However the connections to their autonomic nervous system indicated the subconscious mind had determined which the deck was better long before the subject was consciously aware of it. Studies involving fMRI have clearly demonstrated that the subconscious mind makes decisions as much as ten seconds before the rational mind expresses the decision and then gives a rational reason without realizing the decision had been made subconsciously.
The “conflict” of functions between the right and left brain is best understood as a “team of rivals.” The right brain is the side of creative thinking and open to new thoughts or ideas. It is the creative side. The left brain is the logical, rational and orderly side of the brain. When we are presented with arguments or ideas that conflict with our established values or opinions, fMRI has demonstrated that while the right brain is “willing to listen” the left brain reacts exactly as it would if faced with a fight or flee situation. It is strongly resistant to new or conflicting ideas. There is a balance between them that allows us to function in a normal manner. However, one cannot overlook the significance of emotion in this process as well. It is impossible to make a decision without involving emotion. There is a always balance involving the rational and the emotional functions of our brain in our thinking, decision making and daily activities.
These facts are important for us to know as trial lawyers because we must not present our communications or our cases assuming rational analysis will be used to receive it. We need to understand the importance of the emotional part of our story telling about our cases. We must accept the fact that since the unconscious mind plays such an important part of decision making our trial work is really a matter of impression and not logical persuasion.