Scholarlink

<p>Though the voluntary task-switching paradigm asks participants to select their task and whether to switch on each trial internally, external bottom-up information from the stimulus affects task choice, such that participants were more likely to switch tasks on stimulus switches than stimulus repetitions (e.g., Mayr &amp; Bell, <i>Psychological Science</i>, <i>17</i>(9), 774–780, 2006). In previous research, both the perceptual elements and the identity of the stimulus changed on a stimulus switch, producing ambiguity with regard to which of the two changes drove the effect. By intermixing two stimulus types (words and Arabic numerals in Experiment <InternalRef RefID="Sec3">1</InternalRef>; words and dot arrays in Experiment <InternalRef RefID="Sec12">2</InternalRef>), we aimed to disentangle whether stimulus or identity repetitions drive stimulus-based switching. We produced lists with equal numbers of full stimulus repetitions (4 → 4), full stimulus switches (4 → one), and trials where the identity repeated but the stimulus changed (identity repetitions; 4 → four). We replicated the previous finding that participants were more likely to repeat the previous task on a full stimulus repetition than they were with a full stimulus switch. However, identity repetitions were not statistically different from full stimulus switches. These findings indicate that bottom-up perceptual information, rather than stimulus identity, may be what drives stimulus-based switching.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Is four the same as 4? Exploring whether stimulus repetitions or identity repetitions drive voluntary task choice

  • 期刊论文

  • 发表日期：

    2026年4月16日

查看全文
  • Jackson S. Colvett,
  • Elizabeth K. Boor,
  • Angelina F. Pennino

摘要

Though the voluntary task-switching paradigm asks participants to select their task and whether to switch on each trial internally, external bottom-up information from the stimulus affects task choice, such that participants were more likely to switch tasks on stimulus switches than stimulus repetitions (e.g., Mayr & Bell, Psychological Science, 17(9), 774–780, 2006). In previous research, both the perceptual elements and the identity of the stimulus changed on a stimulus switch, producing ambiguity with regard to which of the two changes drove the effect. By intermixing two stimulus types (words and Arabic numerals in Experiment 1; words and dot arrays in Experiment 2), we aimed to disentangle whether stimulus or identity repetitions drive stimulus-based switching. We produced lists with equal numbers of full stimulus repetitions (4 → 4), full stimulus switches (4 → one), and trials where the identity repeated but the stimulus changed (identity repetitions; 4 → four). We replicated the previous finding that participants were more likely to repeat the previous task on a full stimulus repetition than they were with a full stimulus switch. However, identity repetitions were not statistically different from full stimulus switches. These findings indicate that bottom-up perceptual information, rather than stimulus identity, may be what drives stimulus-based switching.