ALPHABETICAL BRAIN™ VOCABULARY QUOTATIONS ABOUT CONSCIOUSNESS FROM THE BOOK September 9, 2019 CONNECTOME: How the Brain's Wiring Makes Us Who We Are by Sebastian Seung. Houghton Mifflin Harcourt, 2012 (i-xxii, 359 pages) QUOTATIONS ABOUT CONSCIOUSNESS "It is time to return to reality. We have each got one life to live, and one brain to do it with. In the end, every important goal in life boils down to changing our brains. We are blessed with natural mechanisms for transformation, but we find their limitations frustrating. Beyond appealing to our curiosity and sense of wonder, can neuroscience give us new insights and techniques for changing ourselves?... I have argued that... changing our brains is really about changing our connectomes... Is it indeed true that minds differ because connectomes differ?... The next step will be to [use] molecular interventions that promote the four R's: reweighting, reconnection, rewiring, and regeneration." (page 274) "Neurons continue to grow branches well after birth. This process is called the 'wiring' of the brain, since axons and dendrites resemble wires. Axons have to grow the most, since they are much longer than dendrites. Imagine the tiny growing tip of an axon, known as a 'growth cone' for its roughly conical shape." (106) "If a growth cone were expanded to human size, its travels would take it to the other side of a city. How is the growth cone able to navigate such long distances? Many neuroscientists study this phenomenon, and they have found that the growth cone acts like a dog sniffing its way home." (106) "The surfaces of neurons are coated with special guidance molecules (growth cones), which act like scents on the ground. The interstitial spaces between neurons contain drifting guidance molecules that act like scents in the air. Growth cones are equipped with molecular sensors [that] can 'smell' the guidance molecules to find their destination." (106) "The production of guidance molecules and sensors for these molecules is under genetic control ... That is how genes guide the 'wiring' of the brain." (106) instantly return to: QUOTATIONS ABOUT CONSCIOUSNESS or instantly return to: WEBSITE INDEX produced by Infinite Interactive Ideas™