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Chandan Narayan

ch5Student 1At birth a newborns brain is about of its adult weightA25B33C50D662By the age of two a childs brain is about of its adult weightA50B66C75D903What is the covering layer of the cerebrum that contains the cells that control functions such as seeing hearing moving and thinkingAglial cellsBcerebellumCcerebral cortexDmyelin sheath4Which region of the brain is the largest and is divided into two halves or hemispheresAcerebellumBbrain stemCspinal cordDcerebrum5Smiling babbling crawling walking and talking are made possible by the rapid development of the brain particularly theAcerebellumBcerebral cortexCbrain stemDhippocampus6At the time of birth it is believed that an infants brain hasAall or almost all the neurons it will ever haveB25 of the neurons it will have as an adultC50 of the neurons it will have as an adultD75 of the neurons it will have as an adult7The brain cells that send and receive information are theAglial cellsBneuronsCnerve cellsDboth neurons and nerve cells8Most neurons are producedAat conceptionBwhile the fetus is in the uterusCin the first year after birthDin the first two years after birth9The process of synaptogenesis involvesAmyelination of neuronsBformation of communication between neuronsCpruning unnecessary neuronsDformation of the four lobes of the brain10The blooming and pruning that takes place in the brainAhappens at the same time for all parts of the brainBvaries by brain regionCis a result of the excessive myelination that takes place in uteroDresults in decreased brain activity in the visual cortex11The area of the brain that develops most rapidly in the early stages after birth is theAvisual cortexBauditory cortexCmotor areaDlanguage cortex12The corpus callosum is a set of nerve fibres thatAcontrols the left hemisphere functions of the brainBcontrols the right hemisphere functions of the brainCconnects the right and left hemispheres so that both sides can communicate with each otherDallows the brain to alternate functioning between the two hemispheres13The right hemisphere of the brain controlsAthe right side of the bodyBthe left side of the bodyCboth left and right sides of the bodyDthe corpus callosum14The term lateralization of brain functions refers to theAspecificity of certain functions in a specific hemisphere and area of the brainBability of the brain to take over functions of one hemisphere after damage in the opposite sideCfact that the brain hemispheres are two identical organs capable of the same functionsDeven distribution of function across all areas of the brain15If we know that the left hemisphere of the brain is associated with certain functions and these abilities are impaired after an accident we may surmise that theAinjuries are permanentBleft hemisphere was injured in the accidentCright hemisphere will compensate for the impairmentsDability to recognize facial expressions was impaired following the accident16Jacob was involved in a car accident when he was 7 years old He sustained damage to his left hemisphere What would be most difficult for him to do following this accidentAinterpret facial expressionsBunderstand speech and languageCread a mapDrecognize familiar faces17A child who has sustained damage to her right hemisphere would be able to do which task the bestAinterpret facial expressionsBunderstand speech and languageCread a mapDrecognize familiar faces18Trauma to the left or right hemispheres of the brainAmay not have a noticeable effect because the brain has the same functions on both sidesBmay result in some specific deficits depending on the extent and area of the traumaCwill leave the child unable to use language since language functions are found in both hemispheresDwill cause moderate to severe mental retardation19The right hemisphere isas the left hemisphere is Ato joy to fearBto the processing of emotional tone to the producing of emotional toneCactivated in emotional expressions associated with withdrawal from the internal environment activated in the expression of emotions associated with approach to the internal environmentDactivated in emotional expressions associated with withdrawal from the external environment activated in the expression of emotions associated with approach to the external environment20Hemispheric specializationAbegins at 3 years of ageBis evident at birthCis only evident for speech soundsDis completed by age 121Experiments recording electrical potentials in infants evoked by spoken wordsAindicated that all infants processed speech syllables faster on one side of the brain than the otherBindicated that babies whose brain hemispheres differentiated speech sounds on the left side and nonspeech sounds on the right side tended to exhibit better language ability at 3 years of ageCindicated that babies who processed speech in the left hemisphere tended to be left handed at 3 years of ageDindicated that babies who did not process language in the left hemisphere were found to be mentally retarded at 3 years of age22Specialization of handedness in childrenAis established by two years of ageBis evident when the child first begins to reach and graspCbegins with most infants relying on the left hand for early activitiesDis environmentally determined23In the area of lateralization which develops firstAhandednessBfootednessCBoth handedness and footedness develop simultaneouslyDLateralization doesnt occur in childhood24Which is the correct statementAThe establishment of handedness follows the establishment of footednessBFoot preference develops faster than hand preferenceCThe establishment of right footedness appears to be developing through age five years and beyondDThere is no such thing as right or left footedness25Some researchers suggest that dyslexic childrenAmay not have properly developed cerebral lateralization and may possibly be overloading one side of the brainBhave underdeveloped right and left brain hemispheres since information is inadequately processedChave probably not had enough environmental stimulation for language developmentDtend to have lower IQs than children without dyslexia
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