Peter F. Macneilage
- Published in print:
- 1998
- Published Online:
- March 2012
- ISBN:
- 9780198524113
- eISBN:
- 9780191689116
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780198524113.003.0010
- Subject:
- Psychology, Neuropsychology
This chapter can be regarded as a sequel to George Ettlinger's 1984 paper, ‘Humans, apes and monkeys: the changing neuropsychological viewpoint’. He noted that in 1963 ‘there was no evidence for ...
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This chapter can be regarded as a sequel to George Ettlinger's 1984 paper, ‘Humans, apes and monkeys: the changing neuropsychological viewpoint’. He noted that in 1963 ‘there was no evidence for cerebral functional asymmetry in any nonhuman animal’. He then reviewed a number of findings of functional asymmetries in other primates, reported in the following twenty years and concluded that while ‘it might be prudent not to assert that cerebral hemispheric specialization is homologous in man and in monkey…the likelihood of such an eventual outcome has increased enormously’. This chapter contends that there is not only homology across vertebrate taxa for a number of individual specializations, but there is probably some evolutionary continuity in relationships between specializations.Less
This chapter can be regarded as a sequel to George Ettlinger's 1984 paper, ‘Humans, apes and monkeys: the changing neuropsychological viewpoint’. He noted that in 1963 ‘there was no evidence for cerebral functional asymmetry in any nonhuman animal’. He then reviewed a number of findings of functional asymmetries in other primates, reported in the following twenty years and concluded that while ‘it might be prudent not to assert that cerebral hemispheric specialization is homologous in man and in monkey…the likelihood of such an eventual outcome has increased enormously’. This chapter contends that there is not only homology across vertebrate taxa for a number of individual specializations, but there is probably some evolutionary continuity in relationships between specializations.
Catherine LiéGeois-Chauvel, Kimberly Giraud, Jean-Michel Badier, Patrick Marquis, and Patrick Chauvel
- Published in print:
- 2003
- Published Online:
- March 2012
- ISBN:
- 9780198525202
- eISBN:
- 9780191689314
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780198525202.003.0010
- Subject:
- Psychology, Music Psychology
This chapter examines the tonotopic organization of the human auditory cortex using intracerebrally recorded evoked potentials studied as a function of the anatomical recording site. The sensitivity ...
More
This chapter examines the tonotopic organization of the human auditory cortex using intracerebrally recorded evoked potentials studied as a function of the anatomical recording site. The sensitivity of a neuronal population to a given frequency is determined from fluctuations in auditory evoked potential (AEP) amplitude between different recording sites in the primary auditory cortex and surrounding secondary areas like the planum temporale. The chapter particularly explores the tonotopic organization of the human auditory cortex in both cerebral hemispheres. In the right hemisphere, clear spectrally organized tonotopic maps wre observed with distinct separations between different frequency-processing regions. AEPs for high frequencies were recorded medially, whereas AEPs for low frequencies were recorded laterally. However, in the left hemisphere, this tonotopic organization was less evident, with different regions involved in the processing of a range of frequencies. The hemisphere-related difference in the processing of tonal frequency is discussed in relation to pitch perception.Less
This chapter examines the tonotopic organization of the human auditory cortex using intracerebrally recorded evoked potentials studied as a function of the anatomical recording site. The sensitivity of a neuronal population to a given frequency is determined from fluctuations in auditory evoked potential (AEP) amplitude between different recording sites in the primary auditory cortex and surrounding secondary areas like the planum temporale. The chapter particularly explores the tonotopic organization of the human auditory cortex in both cerebral hemispheres. In the right hemisphere, clear spectrally organized tonotopic maps wre observed with distinct separations between different frequency-processing regions. AEPs for high frequencies were recorded medially, whereas AEPs for low frequencies were recorded laterally. However, in the left hemisphere, this tonotopic organization was less evident, with different regions involved in the processing of a range of frequencies. The hemisphere-related difference in the processing of tonal frequency is discussed in relation to pitch perception.
