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Acta Psychol (Amst). 2018 Feb;183:43-50. doi: 10.1016/j.actpsy.2017.12.013. Epub 2018 Jan 8.

A biphasic effect of cross-modal priming on visual shape recognition.

Author information

1
Faculty of Education, Shanghai Key Laboratory of Brain Functional Genomics, Key Laboratory of Brain Functional Genomics (Ministry of Education), School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China; Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China; NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai, Shanghai 200062, China. Electronic address: sze-chai.kwok@st-hughs.oxon.org.
2
Department of Life Sciences, Psychology Unit "Gaetano Kanizsa", University of Trieste, Italy.
3
Faculty of Education, Shanghai Key Laboratory of Brain Functional Genomics, Key Laboratory of Brain Functional Genomics (Ministry of Education), School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China.

Abstract

We used a cross-modal priming paradigm to evoke a biphasic effect in visual short-term memory. Participants were required to match the memorandum (a visual shape, either spiky or curvy) to a delayed probe (a shape belonging to the same category). In two-thirds of trials the sequence of shapes was accompanied by a task-irrelevant sound (either tzk or upo, cross-modally correspondent to spiky and curvy shape categories, respectively). The biphasic effect occurred when a congruent vs. incongruent sound was presented 200ms after the memorandum, while it did not occur when the sound was presented 200ms before or simultaneously with it. The biphasic pattern of recognition sensitivities was revealed by an interaction between cross-modal congruency and probe delay, such that sensitivity was higher for visual shapes paired with a congruent rather than incongruent sound with a 300-ms delay, while the opposite was true with a 1300-ms delay. We suggest that this biphasic pattern of recognition sensitivities was dependent on the task-irrelevant sound activating different levels of shape processing as a function of the relative timing of sound, memorandum, and probe.

KEYWORDS:

Attention; Cross-modal correspondence; Priming; Recognition memory

PMID:
29324235
DOI:
10.1016/j.actpsy.2017.12.013
[Indexed for MEDLINE]

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