【摘要】：以往研究發(fā)現(xiàn),個(gè)體對不同類型的視覺信息進(jìn)行視覺工作記憶鞏固的模式存在差異,如對于方向信息,一次只能有一個(gè)項(xiàng)目被鞏固進(jìn)入視覺工作記憶系統(tǒng),而對于顏色信息,個(gè)體則可以一次鞏固兩個(gè)項(xiàng)目進(jìn)入視覺工作記憶系統(tǒng)。但對于視覺信息的鞏固模式是否會受其他因素的影響,目前仍然沒有明確的定論。本研究將探討視覺信息的鞏固模式是否可能受到記憶項(xiàng)目空間距離因素的影響。研究采用變化覺察范式、序列-同時(shí)呈現(xiàn)操作及控制記憶項(xiàng)目呈現(xiàn)間距的方法,通過3個(gè)實(shí)驗(yàn)考察記憶項(xiàng)目之間的空間距離是否能夠影響個(gè)體對顏色信息和方向信息的鞏固模式。在三種空間距離水平上序列呈現(xiàn)或同時(shí)呈現(xiàn)兩個(gè)記憶項(xiàng)目,實(shí)驗(yàn)結(jié)果一致發(fā)現(xiàn)記憶項(xiàng)目之間的空間距離會對視覺工作記憶鞏固模式產(chǎn)生明顯影響,個(gè)體在同時(shí)呈現(xiàn)條件下的正確率會隨著空間距離的增大而降低。這些結(jié)果表明對同一類視覺信息進(jìn)行鞏固的過程中所存在的項(xiàng)目數(shù)量限制并不是固定的,個(gè)體可以采用序列模式或有限容量的并行模式對同一類信息進(jìn)行鞏固,鞏固的模式可能與視覺空間注意的分配以及視覺信息所能獲得的注意資源有關(guān)。
[Abstract]:Previous studies have found that individuals have different patterns of visual working memory consolidation for different types of visual information, for example, for direction information, only one item can be consolidated into the visual working memory system at a time, while for color information, Individuals can consolidate two items at a time into the visual working memory system. However, there is still no clear conclusion as to whether the consolidation mode of visual information will be affected by other factors. This study will explore whether the consolidation model of visual information may be affected by the spatial distance of memory items. Using the paradigm of change awareness, sequence-presentation of operations and control of the presentation of memory items at the same time, Three experiments were conducted to investigate whether the spatial distance between memory items could affect the consolidation patterns of color information and direction information. The results showed that the spatial distance between memory items had a significant effect on the visual working memory consolidation model at three spatial distance levels. Under the condition of simultaneous presentation, the accuracy of individuals will decrease with the increase of spatial distance. These results indicate that the number of items in the process of consolidating the same type of visual information is not fixed, and individuals can consolidate the same type of information by using a sequential pattern or a parallel pattern with limited capacity. The consolidated pattern may be related to the allocation of visual spatial attention and the attention resources available to visual information.
【作者單位】： 遼寧師范大學(xué)腦與認(rèn)知神經(jīng)科學(xué)研究中心;
【基金】：國家自然科學(xué)基金項(xiàng)目(31571123)資助
【分類號】：B842.3

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