Download 30-Second Brain: The 50 most mind-blowing ideas in by Anil Seth (ed.) PDF

By Anil Seth (ed.)

Are all of us on the mercy of our mind chemistry? Do you're thinking that the amygdala and the hippocampus are fantastical sea monsters? What can an MRI experiment let us know? may well you clarify to dinner-party site visitors why we do not snort after we tickle ourselves? 30-Second mind is the following to fill your brain with the technology of precisely what is taking place within your head. utilizing not more that pages, three hundred phrases, and a unmarried photograph, this can be the fastest technique to comprehend the wiring and serve as of the main advanced and complex mechanism within the human physique. notice how the networks of ninety billion nerve cells interact to supply notion, motion, cognition, and emotion. discover how your mind defines your character, and what it will get as much as while you're asleep. Illustrated with mind-bending photographs and supported via biographies of pioneers within the box of neuroscience, it is the ebook to get your grey subject pondering your grey matter.

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These ‘electrical storms’ are associated with epileptic seizures. neurons The cellular building blocks of the brain. Neurons carry out the brain’s basic operations, taking inputs from other neurons via dendrites, and – depending on the pattern or strength of these inputs – either releasing or not releasing a nerve impulse as an output. Neurons come in different varieties but (almost) all have dendrites, a cell body (soma) and a single axon. phrenology A now discredited theory proposing that individual variation in mental capabilities and personality characteristics can be inferred on the basis of differences in the shape of the skull.

Impulses cause the vesicles to release their contents into the synaptic gap between transmitting and receiving neurons. Released neurotransmitters act by binding to receptor proteins, each of which is tuned to just one neurotransmitter type. There are scores of neurotransmitters and even more receptors. Why so many? After all, if neurotransmitters mediate just two simple functions – excitation and inhibition – surely two transmitters and their receptors is enough? Things are not so simple. Many neurotransmitters do not trigger fast excitation or inhibition, but initiate quite slow metabolic processes in neurons, causing lasting changes in the strength of synaptic connections.

The brain stem controls many vital basic bodily functions, such as breathing, swallowing and blood pressure regulation. Because so many neural pathways pass through the brain stem, damage to this area can have profound effects. cerebral cortex The deeply folded outer layers of the brain, which take up about two-thirds of its entire volume and are divided into left and right hemispheres that house the majority of the ‘grey matter’ (so called because of the lack of myelination that makes other parts of the brain seem white).

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