Recent studies have shown that a pronounced right-ear advantage can occur within dichotic tasks when persons of a particular sex are directed to focus their attention onto the right ear. To examine the effects of attentional bias on laterality more precisely, we provided subjects a greater number of focused-ear trials. Analysis indicated a very strong right-ear advantage in men and women under the right-focus condition as well as a significant left-ear advantage for both sexes with directed left-focus. These findings suggest that sustained ear-attendance exerts a powerful influence on dichotic performance.
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References
1.
AnnettM. (1970) A classification of hand preference by association analysis.British Journal of Psychology, 61, 303–321.
2.
BrydenM. P. (1980a) Attentional factors in the detection of hemispheric asymmetries. In UnderwoodG. (Ed.), Strategies in information processing.New York: Academic Press. Pp. 117–149.
3.
BrydenM. P. (1980b) Sex differences in brain organization: different brains or different strategies?Behavioral and Brain Sciences, 3, 230–231.
4.
BrydenM. P. (1986) Dichotic listening performance, cognitive ability and cerebral organization.Canadian Journal of Psychology, 40, 445–456.
5.
BrydenM. P., MunhallK., & AllardF. (1983) Attentional biases and the right-ear effect in dichotic listening.Brain and Language, 18, 236–248.
6.
CurryF. K. (1967) A comparison of left-handed and right-handed subjects on verbal and non-verbal dichotic listening tasks.Cortex, 3, 343–352.
7.
HicksE. E., & KinsbourneM. (1978) Human handedness. In KinsbourneM. (Ed.), Asymmetrical function of the brain.Cambridge, Eng.: Cambridge Univer. Press. Pp. 523–549.
8.
HiscockM., & HiscockC. K. (1988) An anomalous sex difference in auditory laterality.Cortex, 24, 595–599.
9.
IaccinoJ. F., & SowaS. J. (1989) Asymmetrical processing of dichotic inputs in undergraduates across sex, handedness, ear-side, and experimental instructions.Perceptual and Motor Skills, 68, 1003–1010.
10.
KimuraD. (1964) Left-right differences in the perception of melodies.Quarterly Journal of Experimental Psychology, 16, 335–358.
11.
KnoxC., & KimuraD. (1970) Cerebral processing of nonverbal sounds in boys and girls.Neuropsychologia, 8, 227–237.
12.
LakeD., & BrydenM. P. (1976) Handedness and sex differences in hemispheric asymmetry.Brain and Language, 3, 266–282.
13.
LevyJ. (1972) Lateral specialization of the human brain: behavioral manifestations and possible evolutionary basis. In KigerJ. A. (Ed.), The biology of behavior.Corvallis, OR: Oregon State Univer. Press. Pp. 159–180.
14.
LevyJ. (1976) Cerebral lateralization and spatial ability.Behavior Genetics, 6, 161–188.
15.
McGloneJ., & DavidsonW. (1973) The relationship between cerebral speech laterality and spatial ability with special reference to sex and hand preference.Neuropsychologia, 11, 105–113.
16.
McKeeverW. F., & Van DeventerD. (1977) Visual and auditory language processing asymmetries: influences and handedness, familial sinistrality, and sex.Cortex, 13, 225–241.
17.
NagaeS. (1983) Development of hand-eye dominance in relation to verbal self-regulation of motor behavior.American Journal of Psychology, 96, 539–552.
18.
ZurifE. B., & BrydenM. P. (1969) Familial handedness in left-right differences in auditory and visual perception.Neuropsychologia, 7, 179–187.
