The brain changes as we age. Explain the changes in brain activity involved in processing memories that occur with an aged brain.

What will be an ideal response?


Most measures of cognitive ability in healthy older adults remain stable. This stability might arise from modifications in brain activity that compensate for age-related declines in brain function. As people age, decreased blood flow is observed in many parts of the brain essential to memory and cognition, especially in the frontal and temporal lobes. However, the aging brain also shows areas of increased activation, which suggests that these areas of increased activity represent a reorganization of the brain that allows cognitive performance to remain stable in spite of age-related deficits in function. An older person's brain activity correlated with memory and cognition shows less localization than a younger person's brain while engaged in the same task.

Psychology

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The emotional state of anxiety includes

a. pre-event, the event itself, and post-event arousal. b. cognitive dread, avoidance, and recovery. c. autonomic, sympathetic, and parasympathetic activity. d. physical feelings, thoughts, and behaviors.

Psychology

Although sex is an important part of people's lives, for many years, discussion of sexual topics was taboo. In the recent history of psychology, who first made sex an appropriate sexual topic for discussion?

a. Alfred Kinsey, when he published his research findings about human sexual practices b. William Masters and Virginia Johnson, when they published their findings on the human sexual response c. Sigmund Freud, when he made the libido an important part of his psychoanalytic theory d. Helen Singer Kaplan, when she wrote about desire and sexual readiness

Psychology

Which type of learning occurs when we observe other people act?

a. operant conditioning b. classical conditioning c. insight learning d. observational learning

Psychology

In 1879, B. F. Skinner founded the first formal laboratory devoted to experimental psychology

a. true b. false

Psychology