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ERIC Number: ED312623
Record Type: Non-Journal
Publication Date: 1989
Pages: 16
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
ISSN: N/A
The Influence of Strong Attentional Manipulations on the Processing of Dichotic Inputs in Right-Handers.
Iaccino, James F.
A study was conducted to investigate further the dichotic outcomes in right-handers as a function of sex, ear-side, and most especially stronger attentional bias. The derived prediction was: that increased focus time on the right side would produce a striking right ear advantage (REA) in either right-handed men or women, replicating the most recent findings with instruction manipulations. Subjects were 24 right-handed women and 24 right-handed men; all subjects were undergraduate students. Subjects were told they would be hearing a series of simple sounds which would be presented in each ear simultaneously. For the first block of 120 trials, subjects were instructed to focus their attention on one prespecified ear and report only those sounds coming from that ear. After a one-minute rest, the second block of 120 trials was given and the subjects had to shift their attention to the unattended ear-side and perform the necessary identifications. 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. More work is required with attentional manipulations to determine their relative impact on right-handers' dichotic identifications. (One table is included and eighteen references are attached.) (MG)
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A