Exam 6: Physical Development

By what month of age are 90 percent of typical infants able to roll over?

On average,by the time females reach their mid-20s,what percent of body weight does skeletal muscle account for?

List three possible explanations for the sequencing and timing of early motor development and briefly summarize each of these views.

What does contemporary research on the development of the cerebrum suggest regarding the specialization of the cerebral hemispheres?

Identify two processes that contribute to the increase in brain weight during the brain growth spurt.

What does cerebral lateralization refer to?

Is the order of the motor sequence of sitting,standing,and walking consistent across children?

Describe the interaction between the emergence of gross motor skills and developing perceptual abilities.

Because of the "brain growth spurt," during which age range is the intake of adequate protein particularly important?

Three-year-old Victoria has just been diagnosed with a thyroid deficiency that doctors suspect was present at birth.What is the most likely long-term outcome for Victoria?

What is the typical developmental outcome for children who experience prolonged iron deficiency?

Explain what is meant by cerebral lateralization and outline the basic developmental trends in lateralization.

Is late sexual maturation often initially a social advantage for boys and girls?

Which of the following best summarizes the results of current research with respect to the cause of nonorganic failure-to-thrive syndrome?

What conclusion regarding the role of maturation in motor development is supported by Dennis's classic studies of Iranian orphans?

Which statement best summarizes Segalowitz's data regarding the development of error-related negativity as measure by electrophysiological methods?

Heather was an "early bloomer." She was comparatively young when she began her adolescent growth spurt and began showing unmistakable signs of beginning sexual maturation.Thus,in Grade 4,she was taller than most of her classmates (boys and girls alike),her figure was becoming quite womanly,and she had reached menarche.But she regarded her early changes as some kind of special ordeal nature had inflicted on her.Overall,Heather worried a lot about being on the road to becoming very,very big,and very,very tall.But at least she had company,because her mother told her that she too had matured very early and had some problems for a while. (a)At what ages would you deduce that Heather's growth spurt and sexual maturation began? (b)Might genetics be a factor operating in the timing of Heather's maturation? (c)Why would Heather be less than thrilled about early maturation? How might she feel later,say,in junior high school and high school?

Explain what is meant by the cephalocaudal trend in physical development and provide an example that illustrates this trend.

Which statement best characterizes the timing of the adolescent growth spurt?

According to Goldfield,crawling requires an external goal to motivate the infant to combine and reorganize earlier motor schemes into new motor responses.This finding offers the most support for which theory of motor skill development?