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首页> 外文期刊>Cortex: A Journal Devoted to the Study of the Nervous System and Behavior >What colour does that feel? Tactile-visual mapping and the development of cross-modality
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What colour does that feel? Tactile-visual mapping and the development of cross-modality

机译：感觉是什么颜色？触觉视觉制图和跨模态的发展

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Humans share implicit preferences for cross-modal mappings (e.g., low pitch sounds are preferentially paired with darker colours). Individuals with synaesthesia experience cross-modal mappings to a conscious degree (e.g., they may see colours when they hear sounds). The neonatal synaesthesia hypothesis claims that all humans may be born with this explicit cross-modal perception, which dies out in most people through childhood, leaving only implicit associations in the average adult. Although there is evidence for decreasing cross-modality throughout early infancy, it is unclear whether this decline continues to take place throughout childhood and adolescence. This large-scale study had two goals. First, we aimed to establish whether human non-synaesthetes systematically map tactile and visual dimensions - a combination that has rarely been studied. Second, we asked whether tactile-visual associations may be more pronounced in younger compared to older participants. 210 participants between the ages of 5-74. years assigned colours to tactile stimuli. Smoothness, softness and roundness of stimuli positively correlated with luminance of the chosen colour; and smoothness and softness also positively correlated with chroma. Moreover, tactile sensations were associated with specific colours (e.g., softness with pink). There were no age differences for luminance effects. Chroma effects, however, were found exclusively in children and adolescents. Our findings are consistent with the neonatal synaesthesia hypothesis which suggests that all humans are born with strong cross-modal perception which is pruned away or inhibited throughout development. Moreover, the findings suggest that a decline of some forms of cross-modality may take place over a much longer time span than previously assumed.
机译：人类对交叉模式映射有隐含的偏好（例如，低音调声音优先与较暗的颜色配对）。具有联觉感的个体在有意识的程度上会经历跨模式映射（例如，当他们听到声音时可能会看到颜色）。新生儿联觉假说声称，所有人类可能都具有这种明确的跨模态感知力，这种感知力在大多数人中都贯穿童年而消失，而在普通成年人中只留下隐性联想。尽管有证据表明整个婴儿期的跨模态性下降，但尚不清楚这种下降是否在整个儿童期和青少年期继续发生。这项大规模研究有两个目标。首先，我们旨在确定人的非麻醉剂是否能系统地映射触觉和视觉尺寸，这种组合很少被研究。其次，我们询问与年龄较大的参与者相比，年轻人的触觉-视觉联想是否更明显。 5-74岁之间的210名参与者。年分配触觉刺激的颜色。刺激物的光滑度，柔软度和圆度与所选颜色的亮度呈正相关;光滑度和柔软度也与色度呈正相关。此外，触感与特定颜色（例如，粉红色的柔软度）有关。亮度影响没有年龄差异。然而，仅在儿童和青少年中发现色度效应。我们的发现与新生儿联觉假说相符，该假说表明所有人类天生都有强烈的跨模态感知，这种感知在整个发育过程中都会被修剪掉或抑制。此外，研究结果表明，某些形式的交叉模式的下降可能会比以前设想的更长的时间跨度发生。

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