Memoirs of an Addicted Brain: A Neuroscientist Examines his by Marc Lewis

By Marc Lewis

Marc Lewis’s courting with medications started in a brand new England boarding institution the place, as a bullied and homesick fifteen-year-old, he made short escapes from fact in terms of cough drugs, alcohol, and marijuana. In Berkeley, California, in its hippie heyday, he stumbled on methamphetamine and LSD and heroin; he sniffed nitrous oxide in Malaysia; and frequented Calcutta’s opium dens. finally, notwithstanding, his trip took him the place it takes so much addicts: right into a lifetime of desperation, deception, and crime.

But not like so much addicts, Lewis recovered to turn into a developmental psychologist and researcher in neuroscience. In Memoirs of an Addicted Brain, he applies his specialist services to a learn of his former self, utilizing the tale of his personal trip via habit to inform the common tale of addictions of each kind.

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Extra resources for Memoirs of an Addicted Brain: A Neuroscientist Examines his Former Life on Drugs

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In fact, every cortical neuron can be identified as either excitatory or inhibitory based on this aspect of its job description. The molecules that actually do the work of crossing the synapses are called neurotransmitters, for obvious reasons. And drugs, including alcohol, very often transform the brain’s firing patterns by altering the action of these neurotransmitters. There are two main neurotransmitters that correspond with the two modes of neural communication. Excitatory neurons send packets of glutamate across the synaptic channel—yes, glutamate, a derivative of the sugar molecule, glucose—while inhibitory neurons send packets of GABA—GABA is the short form for a name too long to pronounce.

That amounts to the yin and yang of the brain, the zeroes and ones of the fleshy computers we carry around in our skulls. But, just like the zeroes and ones of a mechanical computer, excitation and inhibition can be combined in configurations of enormous complexity. In a nutshell, excitation builds communities of neurons that activate each other, in self-amplifying waves of synchrony, like a spontaneous chant arising at a sports event. And these communities can form in less than a twentieth of a second, hence the speed of .

Witherstein, looked as though he’d stepped out of an old movie. He parted his hair almost dead centre, and he was grey and crusty like a venerable admiral himself. He waited for us at the lectern, beaming with unnatural enthusiasm. He delighted in the series of routine announcements that he would soon recite with such gravity. I took my assigned seat. Each seat back held a short wire rack containing a hymnal. I reached toward mine automatically, on cue. We opened our hymnals together, the rustle of pages filling the hall, and we began to sing.

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Memoirs of an Addicted Brain: A Neuroscientist Examines his by Marc Lewis
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