Thinking Sensing and Behaving

Photograph of a man cleaning and taking care of a child at the same time
The brain works best with one job at a time, but daily life calls for multitasking, causing a “bottle neck” in the brain.
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Once the neural induction has occurred, the next step for new neurons is a journey to the proper position in the brain. This process is called migration, and it begins three to four weeks after a human baby is conceived.
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Hormones are important messages both within the brain and between the brain and the body.
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Molecules that are important in brain development may help treat or prevent brain injuries and disorders.
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Insulation covering wires preserves the strength of the electrical signals that travel through them. The myelin sheath covering axons serves a similar purpose.
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Often considered the most important sense for humans, hearing allows us to communicate with each other by receiving sounds and interpreting speech.
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In response to signals from a brain region called the hypothalamus, the adrenal glands secrete glucocorticoids, hormones that produce an array of effects in response to stress.
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Extreme stressors such as trauma in combat, being a victim of assault or sexual abuse, or experiencing or witnessing a crime can lead to a form of stress that can last a lifetime.
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Considered the most common mental illnesses, anxiety disorders affect an estimated 18 percent of the adult population in a given year, or 40 million Americans.
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What do standing frustrated in a supermarket checkout line or sitting in a traffic jam have in common with fleeing predators, as was done in the early days of human beings?
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A stressful situation activates three major communication systems in the brain, all of which regulate bodily functions.
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The ability to react quickly in response to threatening events has been with us since the time of our earliest ancestors.
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Although legal, alcohol is addictive. Together, alcohol abuse and alcohol addiction — sometimes referred to as alcoholism or alcohol dependence — are among the nation's major health problems.
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