کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4312565 1612972 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Understanding the relationship between schizotypy and attention: Dissociating stimulus- and dimension-specific processes
ترجمه فارسی عنوان
درک رابطه بین اسکیزوتایپی و توجه: جدا کردن فرآیندهای محرک و خاص
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
چکیده انگلیسی


• We studied the influence of schizotypy on speeded alphanumeric decisions.
• We manipulated the familiarity of and attention to the alphanumeric stimuli.
• Learning about novel stimuli was modulated by schizotypy.
• Schizotypy affects the ability to tune attention to stimulus dimensions.

Two experiments investigated how the schizotypal characteristics of unusual experiences modulate changes in attention to alphanumeric stimuli. In the first stage of both experiments, participants were required to attend and respond to either Arabic numerals or Latin letters; with the four exemplars from each dimension being presented on a different number of occasions (0, 5, 10, 20). During the test in Experiment 1 (n = 103), speeded alphanumeric decisions were more accurate for the novel than familiar exemplars, irrespective of whether they had been attended to or not. This influence of familiarity was not modulated by schizotypy. During the test in Experiment 2 (n = 128), learning that the attended dimension predicted the presentation of the symbol X (or the absence of X) proceeded more rapidly than learning the corresponding predictions involving the unattended dimension. In the case of novel exemplars, but not familiar exemplars, this modulation of learning by attention was reduced as schizotypy scores increased. Taken together, these results show that schizotypal characteristics do not modulate the influence of familiarity on performance (Experiment 1), but do have an influence on attention, which is best characterised as one on tuning attention to stimulus dimensions rather than individual stimuli.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Behavioural Brain Research - Volume 260, 1 March 2014, Pages 8–14
نویسندگان
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