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41.
We investigated whether implicit learning in a visual search task would influence preferences for visual stimuli. Participants performed a contextual cueing task in which they searched for visual targets, the locations of which were either predicted or not predicted by the positioning of distractors. The speed with which participants located the targets increased across trials more rapidly for predictive displays than for non-predictive displays, consistent with contextual cueing. Participants were subsequently asked to rate the "goodness" of visual displays. The rating results showed that they preferred predictive displays to both non-predictive and novel displays. The participants did not recognize predictive displays any more frequently than they did non-predictive or novel displays. These results suggest that contextual cueing occurred implicitly and that the implicit learning of visual layouts promotes a preference for visual layouts that are predictive of target location. 相似文献
42.
The procerebrum is necessary for odor-aversion learning in the terrestrial slug Limax valentianus 下载免费PDF全文
Kasai Y Watanabe S Kirino Y Matsuo R 《Learning & memory (Cold Spring Harbor, N.Y.)》2006,13(4):482-488
The terrestrial slug Limax has a highly developed ability to associate the odor of some foods (e.g., carrot juice) with aversive stimuli such as the bitter taste of quinidine solution. The procerebrum (PC) is a part of the slug's brain thought to be involved in odor-aversion learning, but direct evidence is still lacking. Here we present evidence showing that the PC is essential for odor-aversion learning. Unlike sham-operated slugs, PC ablation 7 d prior to conditioning showed that most slugs did not avoid carrot juice in the memory retention test conducted 24 h after the conditioning. Slugs with the PC ablated 3 h, 1 d, 3 d, or 7 d after conditioning and examined by the memory retention test at 3 d after the PC ablation were also less likely to avoid carrot juice than sham-operated slugs. The PC ablation did not damage the ability of the slugs to sense attractive odor (everyday food) or innately aversive odor (onion or garlic). These results demonstrate that the PC is a necessary component in the retention and/or retrieval of odor-aversion memory. 相似文献
43.
Depletion of serotonin selectively impairs short-term memory without affecting long-term memory in odor learning in the terrestrial slug Limax valentianus 下载免费PDF全文
Shirahata T Tsunoda M Santa T Kirino Y Watanabe S 《Learning & memory (Cold Spring Harbor, N.Y.)》2006,13(3):267-270
The terrestrial slug Limax is able to acquire short-term and long-term memories during aversive odor-taste associative learning. We investigated the effect of the selective serotonergic neurotoxin 5,7-dihydroxytryptamine (5,7-DHT) on memory. Behavioral studies indicated that 5,7-DHT impaired short-term memory but not long-term memory. HPLC (high-performance liquid chromatography) analysis revealed that 5,7-DHT significantly reduced serotonin content in the central nervous system. The present study suggests that acquisition, retention, and/or retrieval of short-term memory involves serotonin, and neither acquisition nor retrieval of long-term memory requires serotonin at a level as high as that required for short-term memory. 相似文献
44.
45.
In some cases, perceptual learning is task-specific. However, task-dependent effects of perceptual learning on psychophysical motion-tuning functions have yet to be clarified. In the present study, subjects performed motion detection or discrimination of the same stimulus over the course of four sessions held on separate days. Subjects who performed motion detection showed the most highly improved performance on the trained motion directions. However, after discrimination training, the highest improvement was not observed at the trained directions but shifted away from them. These results can be explained by lateral inhibition. Task demands may differentially modulate excitatory and inhibitory signals to directions in the vicinity of the trained directions. 相似文献
46.
The Psychological Record - Two pigeons learned to respond to four objects while withholding response to two objects. The birds maintained their numerical discrimination when new objects were... 相似文献
47.
Hisako Watanabe 《Infant mental health journal》1992,13(1):26-33
The Japanese word amae refers initially to the infant's feelings and attachment behavior toward the mother. Doi has vividly described how amae is carried through into adulthood characterizing Japanese social and family relationships and Japanese psychology. Exploring implications of the amae concept for infant research will be helped by including other aspects of amae manifest in clinical work: (1) Amae takes place in the complex vicissitudes of motherhood in Japan in which the mother fulfills her social as well as emotional needs through her infant; (2) as the child grows older he or she learns that amae can only be fulfilled if he or she is able to meet the parent's and the social demand for achievement; (3) there is a long tradition of inhibition of amae among women which is passed on from generation to generation affecting the quality of mothering; (4) the intuitive aspect of good enough amae in the parent-in-fant relationship is being lost due to rapid ongoing social changes. Therapeutic endeavors to retrieve the intuitive aspect of amae prove effective for the increasing numbers of relationship disturbances in infancy. 相似文献
48.
Four jungle crows (Corvus macrorhynchos) were exposed to a mirror placed either vertically or horizontally. The most frequently observed behaviors were pecking at
the mirror and wing flapping when looking toward the mirror. These behavior patterns, which were only rarely observed when
the mirror was reversed, can be interpreted as aggressive behaviors against a conspecific. The vertical mirror evoked the
behaviors more often than the horizontal mirror. The present results suggest that crows perceive their mirror image as an
image of a conspecific, not as their own.
Received: 16 December 1999 / Accepted after revision 29 January 2000 相似文献
49.
We report a distortion of subjective time perception in which the duration of a first interval is perceived to be longer than the succeeding interval of the same duration. The amount of time expansion depends on the onset type defining the first interval. When a stimulus appears abruptly, its duration is perceived to be longer than when it appears following a stationary array. The difference in the processing time for the stimulus onset and motion onset, measured as reaction times, agrees with the difference in time expansion. Our results suggest that initial transient responses for a visual onset serve as a temporal marker for time estimation, and a systematic change in the processing time for onsets affects perceived time. 相似文献
50.
Ikuta N Sugiura M Sassa Y Watanabe J Akitsuki Y Iwata K Miura N Okamoto H Watanabe Y Sato S Horie K Matsue Y Kawashima R 《Brain and language》2006,97(2):154-161
The purpose of this study is to determine, by functional magnetic resonance imaging, how the activated regions of the brain change as a Japanese sentence is presented in a grammatically correct order. In this study, we presented constituents of a sentence to Japanese participants one by one at regular intervals. The results showed that the left lingual gyrus was significantly activated at the beginning of the sentence, then the left inferior frontal gyrus and left supplementary motor area, in the middle of the sentence, and the left inferior temporal gyrus, at the end of the sentence. We suggest that these brain areas are involved in sentence comprehension in this temporal order. 相似文献