Multisensory integration across the senses in young and old adults.
Multisensory integration across the senses in young and old adults.
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DOI：
10.1016/j.brainres.2011.09.017
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发表时间：
2011-12-02
期刊：
影响因子：
2.9
通讯作者：
Holtzer R
中科院分区：
文献类型：
--
作者：
Mahoney JR;Li PC;Oh-Park M;Verghese J;Holtzer R
刺激被同时处理，并跨越多个感官输入。在这里，我们直接比较了多感觉整合（MSI）对18名年轻人（M=19.17岁）和18名老年人（M=76.44岁）的三对感觉输入反应时间的影响。参与者被确定为非痴呆，没有任何会影响他们表现的医疗或精神疾病。参与者对随机呈现的单感官（听觉，视觉，体感）刺激和三对感官输入包括听觉-体感（AS）听觉-视觉（AV）和视觉-体感（VS）刺激作出反应。结果显示，所有多感官配对的反应时间（RT）显着快于那些引起的各年龄组的组成unisensory条件，不能简单的概率求和的结果。年轻人和老年人的参与者反应最快的多感官配对包含体感输入。与年轻人相比，老年人在处理并发VS信息时表现出更大的RT益处。在共激活方面，老年人表现出视觉-体感共激活的幅度显著增加（即，多感觉整合），而年轻的成年人表现出显着增加的幅度，神经-视觉和神经-体感共激活。这项研究提供了第一个证据，在老年人的配对体感视觉刺激的促进作用。
Stimuli are processed concurrently and across multiple sensory inputs. Here we directly compared the effect of multisensory integration (MSI) on reaction time across three paired sensory inputs in eighteen young (M=19.17 yrs) and eighteen old (M=76.44 yrs) individuals. Participants were determined to be non-demented and without any medical or psychiatric conditions that would affect their performance. Participants responded to randomly presented unisensory (auditory, visual, somatosensory) stimuli and three paired sensory inputs consisting of auditory-somatosensory (AS) auditory-visual (AV) and visual-somatosensory (VS) stimuli. Results revealed that reaction time (RT) to all multisensory pairings was significantly faster than those elicited to the constituent unisensory conditions across age groups; findings that could not be accounted for by simple probability summation. Both young and old participants responded the fastest to multisensory pairings containing somatosensory input. Compared to younger adults, older adults demonstrated a significantly greater RT benefit when processing concurrent VS information. In terms of co-activation, older adults demonstrated a significant increase in the magnitude of visual-somatosensory co-activation (i.e., multisensory integration), while younger adults demonstrated a significant increase in the magnitude of auditory-visual and auditory-somatosensory co-activation. This study provides first evidence in support of the facilitative effect of pairing somatosensory with visual stimuli in older adults.
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影响因子：
4.2
作者：
DUSTMAN, RE;SNYDER, EW
通讯作者：
SNYDER, EW
影响因子：
--
作者：
Camicioli, R;Panzer, VP;Kaye, J
通讯作者：
Kaye, J
影响因子：
5.4
作者：
Colonius, H;Diederich, A
通讯作者：
Diederich, A
影响因子：
3.2
作者：
Chao, LL;Knight, RT
通讯作者：
Knight, RT
DOI：
10.1044/jshr.1502.413
发表时间：
1972-01-01
期刊：
JOURNAL OF SPEECH AND HEARING RESEARCH
影响因子：
--
作者：
ERBER, NP
通讯作者：
ERBER, NP