全局与局部注意模式下的注意瞬脱
Attentional blink in global versus local attentional modes.
作者信息
Lawson M L, Crewther D P, Duke C C, Henry L, Kiely P M, West S J, Crewther S G
机构信息
School of Psychological Science, La Trobe University, Bundoora, Victoria, Australia.
出版信息
Aust N Z J Ophthalmol. 1998 May;26 Suppl 1:S88-90. doi: 10.1111/j.1442-9071.1998.tb01384.x.
PURPOSE
Brain imaging studies have shown that global and local attention activate different areas of the brain, with implication for dependence of perception on attentional state. The aim of the present experiment was to investigate the duration of the attentional blink in global versus local attention.
METHODS
Rapid Serial Visual Presentation (RSVP) sequences of global/local stimuli were presented to 34 adult subjects who had to identify a target red figure followed by a determination of whether a certain probe letter, 'X' (specified to be either the global or local form), was present in the subsequent string of letters.
RESULTS
Attentional blinks were longer than any previously reported (1.67 s global; 2.97 s local) and were significantly different.Thus, the length of the attentional blink is dependent on the attentional state of the subject.
CONCLUSION
This pattern of results is consistent with the hypothesis that global attention mechanisms receive predominantly M-pathway input.
目的
脑成像研究表明，全局和局部注意力会激活大脑的不同区域，这意味着感知依赖于注意力状态。本实验的目的是研究全局注意力与局部注意力中注意力瞬脱的持续时间。
方法
向34名成年受试者呈现全局/局部刺激的快速序列视觉呈现（RSVP）序列，受试者必须识别一个目标红色图形，然后确定随后的字母串中是否存在某个探测字母“X”（指定为全局或局部形式）。
结果
注意力瞬脱时间比之前报道的任何时间都长（全局为1.67秒；局部为2.97秒），且存在显著差异。因此，注意力瞬脱的时长取决于受试者的注意力状态。
结论
这种结果模式与全局注意力机制主要接收M通路输入的假设一致。
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