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排序方式: 共有258条查询结果,搜索用时 280 毫秒
81.
Evidence supports the use of rhythmic external auditory signals to improve gait in PD patients (Arias & Cudeiro, 2008; Kenyon & Thaut, 2000; McIntosh, Rice & Thaut, 1994; McIntosh et al., 1997; Morris, Iansek, & Matyas, 1994; Thaut, McIntosh, & Rice, 1997; Suteerawattananon, Morris, Etnyre, Jankovic, & Protas , 2004; Willems, Nieuwboer, Chavert, & Desloovere, 2006). However, few prototypes are available for daily use, and to our knowledge, none utilize a smartphone application allowing individualized sounds and cadence. Therefore, we analyzed the effects on gait of Listenmee®, an intelligent glasses system with a portable auditory device, and present its smartphone application, the Listenmee app®, offering over 100 different sounds and an adjustable metronome to individualize the cueing rate as well as its smartwatch with accelerometer to detect magnitude and direction of the proper acceleration, track calorie count, sleep patterns, steps count and daily distances. The present study included patients with idiopathic PD presented gait disturbances including freezing. Auditory rhythmic cues were delivered through Listenmee®. Performance was analyzed in a motion and gait analysis laboratory. The results revealed significant improvements in gait performance over three major dependent variables: walking speed in 38.1%, cadence in 28.1% and stride length in 44.5%. Our findings suggest that auditory cueing through Listenmee® may significantly enhance gait performance. Further studies are needed to elucidate the potential role and maximize the benefits of these portable devices. 相似文献
82.
This study investigated cultural differences, continuity and change of practices concerning body stimulation in a context of immigration. Parenting behaviors during the interaction with infants at 4, 8 and 12 weeks, and parenting ethnotheories at 12 weeks of first-generation West African immigrant mothers in Italy and autochthonous Italian mothers were compared. A qualitative inspection of ethnotheories using a thematic approach was included. As expected, results showed that immigrant mothers placed more emphasis on motor stimulation and showed longer durations of rhythmic motor and rhythmic tactile behaviors than Italian mothers; the latter placed more emphasis on tactile stimulation than immigrant mothers. The practice of motor stimulation in immigrant mothers was also adapted to values of the new context of life, becoming a positive interaction game with a mutual exchange of positive emotions. Findings express the complexity of a multidimensional process of acculturation. 相似文献
83.
Efficacy of neurostimulation to treat symptoms of Mal de Debarquement Syndrome. A preliminary study using repetitive transcranial magnetic stimulation
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Mal de debarquement syndrome (MdDS) is a rare and poorly understood condition of perceived continual motion. Using a multiple‐case design (n = 13; 8 f; 63.5 ± 12.6 years), this study investigated the efficacy of eight 20‐min sessions, over 4 weeks, of repetitive transcranial magnetic stimulation (rTMS) of the dorsolateral pre‐frontal cortex. Compared to sham, rTMS demonstrated improvement in balance and confidence in daily living activities. rTMS shows promise for the treatment of MdDS. However, larger trials with longer intervention periods are required. 相似文献
84.
85.
A number of recent studies have documented rapid changes in behavioural sensory acuity induced by aversive learning in the olfactory and auditory modalities. The effect of aversive learning on the discrimination of low-level features in the visual system of humans remains unclear. Here, we used a psychophysical staircase procedure to estimate discrimination thresholds for oriented grating stimuli, before and after differential aversive learning. We discovered that when a target grating orientation was conditioned with an aversive loud noise, it subsequently led to an improvement of discrimination acuity in nearly all subjects. However, no such change was observed in a control group conditioned to an orientation shifted by ±90° from the target. Our findings cannot be explained by contextual learning or sensitisation factors. The results converge with those reported in the olfactory modality and provide further evidence that early sensory systems can be rapidly modified by recently experienced reinforcement histories. 相似文献
86.
近年来, 研究者开始将经颅交流电刺激技术应用于精神疾病领域中, 其中, 以γ、α频率最受关注。tACS作用于精神疾病的可能机制包括两个方面, 直接调节异常的大脑神经活动和间接改善患者的认知功能。首先, 使用特定频率的tACS作用目标脑区, 可以调节对应频率的神经振荡和大脑功能连接, 通过作用于疾病相关的异常大脑活动, 直接改善患者的临床症状。其次, 并不针对某种疾病特异受损的大脑活动, 而是用tACS激活与认知功能相关的大脑环路, 广泛地提高患者的注意、记忆等多种认知功能, 进而整体上缓解不良症状。目前, 使用tACS治疗精神疾病这一领域还有一些尚未解决、值得探讨的问题。tACS的作用机制研究、刺激参数和范式改进、技术升级, 可以成为心理学、脑科学以及临床医学的重点研究方向。 相似文献
87.
Giulia Bucchioni Andrea Cavallo Davide Ippolito Gianluca Marton Umberto Castiello 《Brain and cognition》2013
Evidence suggests that the observation of an action induces in the observers an enhancement of motor evoked potentials (MEPs) recorded by the observer’s muscles corresponding to those involved in the observed action. Although this is a well-studied phenomenon, it remains still unclear how the viewer’s motor facilitation is influenced by the social content characterizing the observed scene. In the present study we investigated the facilitation of the corticospinal system during the observation of either an action that does not imply a social interaction (i.e., an actor throwing a ball against a wall), or an action which implies a social interaction (i.e., an actor passing a ball to a partner). Results indicate that MEPs amplitude is enhanced during the observation of a social rather than an individual action. We contend that the increase in MEPs activation might reflect an enhancement of the simulative activity stemming from the mirror system during the observation of social interactions. Altogether these findings show that the human corticospinal system is sensitive to social interactions and may support the role of the mirror neurons system in social cognition. 相似文献
88.
Recent studies suggest that lucid dreaming (awareness of dreaming while dreaming) might be associated with increased brain activity over frontal regions during rapid eye movement (REM) sleep. By applying transcranial direct current stimulation (tDCS), we aimed to manipulate the activation of the dorsolateral prefrontal cortex (DLPFC) during REM sleep to increase dream lucidity. Nineteen participants spent three consecutive nights in a sleep laboratory. On the second and third nights they randomly received either 1 mA tDCS for 10 min or sham stimulation during each REM period starting with the second one. According to the participants’ self-ratings, tDCS over the DLPFC during REM sleep increased lucidity in dreams. The effects, however, were not strong and found only in frequent lucid dreamers. While this indicates some preliminary support for the involvement of the DLPFC in lucid dreaming, further research, controlling for indirect effects of stimulation and including other brain regions, is needed. 相似文献
89.
Ana Tajadura-Jiménez Ludovica Lorusso Manos Tsakiris 《Consciousness and cognition》2013,22(4):1352-1360
In the “enfacement” illusion seeing an unfamiliar face being touched at the same time as one’s own face evokes changes in self-face recognition. We investigated the contribution of proprioceptive and motor signals derived from self-generated actions in the sensory-driven malleability of self–other boundaries during the “enfacement” illusion. Changes in self-face recognition during active- and passive-touch interpersonal visuo-tactile stimulation were quantified by means of psychophysical and psychometric tasks. Active- and passive-touch evoked comparable changes in the categorical boundaries of self–other distinction, changing the extent to which the other is assimilated into the mental self-representation. Actively touching or simply feeling touch on one’s own face with concurrent observed touch on someone else’s face seems to elicit comparable changes in self-recognition, suggesting that afferent input might be sufficient for updating one’s body-image, although some components of the experience of self-identification seem to be more affected by passive- than by active-touch. 相似文献
90.
Seppo Iso-Ahola 《Journal of motor behavior》2013,45(4):267-275
This study examined the effects of success and failure feedback on subsequent motor performance. Based upon the general motivation (or level-of-aspiration) hypothesis, initial success should lead to better subsequent performance than does initial failure, while the reverse prediction was derived from the cognitive dissonance theory. To test these rival hypotheses, two experiments were conducted on undergraduate male students (n =120) performing a motor maze task. Initial failure improved subjects’ subsequent performance, thus supporting the dissonance theory. However, this effect was observed only under low-ego-involving conditions, thereby suggesting that the effects of dissonance and ego involvement are interdependent. The findings were discussed in terms of motivational and informational/attributional effects of outcome feedback on motor performance. 相似文献