Pamela J. Bion

Lancaster University, Lancaster, ENG, United Kingdom

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Publications (9)40.94 Total impact

  • Andrew W Young · Andrew W Ellis · Pamela J Bion
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    ABSTRACT: Right-handed adults were asked to identify bilaterally presented linguistic stimuli under three experimental conditions. In Condition A, stimuli were three-letter pronounceable nonwords (such as TUP), and subjects were asked to report them by naming them. In Condition B, stimuli were three-letter pronounceable nonwords, and subjects were asked to report them as strings of letters. In Condition C, stimuli were more or less unpronounceable letter strings (such as UTP) created by rearranging the letters of pronounceable nonwords, and subjects reported them as strings of letters. Pronounceable nonwords were found to be better identified from the right visual hemifield irrespective of the way in which they were reported. Unpronounceable letter strings did not produce any visual hemifield difference. Nonwords are of interest because they can be seen as potential words that lack both specific semantic properties and entries in the subject's internal lexicon. The results of the experiment are consistent with the view that both the left and right cerebral hemispheres are able to identify letters but the left hemisphere is more sensitive to the pronounceability of the nonwords. This may happen either because the left hemisphere can make better use of resemblances to real words or because it has access to spelling to sound correspondence rules.
    Brain and Language 05/1984; 22(1-22):14-25. DOI:10.1016/0093-934X(84)90076-2 · 3.31 Impact Factor
  • Andrew W. Young · Pamela J. Bion
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    ABSTRACT: Two experiments on right hemisphere superiority for upright face recognition by normal adults are reported. Experiment 1 showed that right hemisphere superiority for face recognition is affected by the ratio of stimuli to trials used in the experiment. A low ratio of stimuli to trials (Condition A) gave right hemisphere superiorities for both male and female subjects, whereas a high ratio of stimuli to trials (Condition C) led to no visual hemifield difference for male or for female subjects. The use of a stimuli to trials ratio intermediate between those of Condition A and Condition C resulted in a sex difference, with males but not females showing right hemisphere superiority in Condition B. It is argued that both males and females possess asymmetrically organised face processing mechanisms whose operation is dependent upon the level of difficulty of the face memory task used in a particular experiment, but that there is a sex difference in the range across which these mechanisms can operate. Experiment 2 demonstrated that this sex difference does not simply reflect an underlying sex difference in the tendency to use configurational or piecemeal strategies in such experiments.
    Cortex 07/1983; 19(2):215-26. DOI:10.1016/S0010-9452(83)80015-X · 6.04 Impact Factor
  • Andrew W. Young · Pamela J. Bion · Andrew W. Ellis
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    ABSTRACT: Nouns of high imageability and low or high age of reading acquisition were presented bilaterally to adult subjects, who were asked to name them. Order of report of nouns appearing in the LVF and in the RVF was counterbalanced. RVF nouns were more accurately named, regardless of age of reading acquisition. This result is inconsistent with the hypothesis that the right cerebral hemisphere acquires its 'visual vocabulary' during the early stages of learning to read. Despite being matched to high reading age nouns on frequency and imageability, low reading age nouns were more accurately named.
    Cortex 11/1982; 18(3):477-82. DOI:10.1016/S0010-9452(82)80045-2 · 6.04 Impact Factor
  • Andrew W. Young · Pamela J. Bion
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    ABSTRACT: Line drawings of common objects were presented bilaterally, with one drawing in each visual hemifield, to right-handed children aged five, seven and eleven years, and to adults, who were required to name them. Left-right or right-left order for report was counterbalanced by means of a cue consisting of underlining the drawing to be reported first. No visual hemifield difference was found for subjects' first reports, and a small right visual hemifield (RVF) superiority was found for subjects' second reports. This visual hemifield X report interaction was unrelated to age. The result is taken to indicate that there is no change in the age range studied in the relative abilities of the left and right cerebral hemispheres to recognise the drawings used, but that at all ages the right hemisphere is less able than the left to effect the temporary storage needed when a drawing is to be reported second.
    Cortex 11/1981; 17(3):459-64. DOI:10.1016/S0010-9452(81)80036-6 · 6.04 Impact Factor
  • A W Young · P J Bion
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    ABSTRACT: Two experiments investigating asymmetries in the naming of laterally presented known faces are reported. In Experiment I, upright and inverted faces of classmates or colleagues were presented bilaterally and unilaterally to seven-year-old children, eleven-year-old children, and adults. A LVF (left visual hemifield) superiority was found for naming upright faces, unrelated to age. For inverted faces there was no difference between the visual hemifields. In Experiment II faces of famous people were used as stimuli. When adult subjects were given little indication as to which faces to expect (Condition A) there was no difference between the visual hemifields. When they were given a list of the faces to be used (Condition B) a LVF naming superiority was found. The results are interpreted as indicating superiority of the right cerebral hemisphere for a component of the processing of known faces that is of importance when the subject knows which faces he can expect to see.
    Cortex 05/1981; 17(1):97-106. DOI:10.1016/S0010-9452(81)80009-3 · 6.04 Impact Factor
  • A W Young · P J Bion · A W Ellis
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    ABSTRACT: Experiments requiring the naming of bilaterally presented nouns, picturable nouns, consonant-vowel-consonant (CVC) nonwords, and line drawings are reported. In order to eliminate order of report strategies and facilitate comparison across experiments, the stimulus to be reported first was cued by underlining at presentation of each trial. Large right visual hemifield (RVF) superiorities were found to arise from both first and second reports for naming nouns and CVC nonwords. Drawings and picturable nouns, however, produced only a small RVF superiority arising entirely from subjects' second reports. It is proposed that hemispheric laterality effects for naming visually presented stimuli can arise from three principal sources, and the application of this model to existing studies is outlined.
    Brain and Language 10/1980; 11(1):54-65. DOI:10.1016/0093-934X(80)90109-1 · 3.31 Impact Factor
  • Andrew W. Young · Pamela J. Bion
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    ABSTRACT: Upright or inverted pictures of faces were presented bilaterally, with one face falling in each visual hemifield, to right-handed children aged seven, ten and thirteen years. When a small set of four stimulus faces was used with each child (Experiment I) both boys and girls were found to be better at recognising upright faces falling in the left visual hemifield (LVF). For inverted faces there was no difference between the visual hemifields. When a set of forty stimulus faces was used (Experiment II), boys only were found to be better at recognising upright faces falling in the LVF. These results are interpreted in terms of superiority of the right cerebral hemisphere for processing upright faces. No developmental differences in the degree of this superiority were found in the age range studied.
    Cortex 09/1980; 16(2):213-21. DOI:10.1016/S0010-9452(80)80057-8 · 6.04 Impact Factor
  • A W Young · P J Bion
    Perceptual and Motor Skills 05/1980; 50(2):366. DOI:10.2466/pms.1980.50.2.366 · 0.66 Impact Factor
  • Andrew W. Young · Pamela J. Bion
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    ABSTRACT: Right-handed children aged 5, 7 and 11 years were asked to enumerate collections of 2, 3, 4, 5 or 6 dots presented briefly in their left or right visual hemifield. Analysis of variance revealed an overall left visual hemifield superiority for accuracy, interpreted as indicating superiority of the right cerebral hemisphere. Boys showed a greater degree of visual hemifield asymmetry for accuracy than girls. Reaction times for correct enumerations recorded via a voice key were significantly faster to left visual hemifield presentations. Accuracy was found to increase with increasing age, but no developmental trends in laterality were evident with either accuracy or vocal reaction time measures.
    Neuropsychologia 02/1979; 17(1):99-102. DOI:10.1016/0028-3932(79)90028-9 · 3.45 Impact Factor

Publication Stats

193 Citations
40.94 Total Impact Points

Institutions

  • 1979–1984
    • Lancaster University
      • Department of Psychology
      Lancaster, ENG, United Kingdom