Speech-associated gestures, Broca’s area, and the human mirror system

Speech-associated gestures are hand and arm movements that not only convey semantic information to listeners but are themselves actions. Broca’s area has been assumed to play an important role both in semantic retrieval or selection (as part of a language comprehension system) and in action recognition (as part of a “mirror” or “observation–execution matching” system). We asked whether the role that Broca’s area plays in processing speech-associated gestures is consistent with the semantic retrieval/selection account (predicting relatively weak interactions between Broca’s area and other cortical areas because the meaningful information that speech-associated gestures convey reduces semantic ambiguity and thus reduces the need for semantic retrieval/selection) or the action recognition account (predicting strong interactions between Broca’s area and other cortical areas because speech-associated gestures are goal-direct actions that are “mirrored”). We compared the functional connectivity of Broca’s area with other cortical areas when participants listened to stories while watching meaningful speech-associated gestures, speech-irrelevant self-grooming hand movements, or no hand movements. A network analysis of neuroimaging data showed that interactions involving Broca’s area and other cortical areas were weakest when spoken language was accompanied by meaningful speech-associated gestures, and strongest when spoken language was accompanied by self-grooming hand movements or by no hand movements at all. Results are discussed with respect to the role that the human mirror system plays in processing speech-associated movements.     

言语与手部运动关系的研究回顾

言语与手部运动之间存在复杂的联系。该文总结了两类手部运动（伴随言语发生的手势运动和抓握运动）与言语之间关系的行为和脑科学研究成果。发现：（1）伴随言语产生的意义手势可促进言语加工,特别是词汇的提取过程;（2）观察手的抓握运动影响言语产生时唇的运动和声音成分;（3）对词语的知觉影响抓握运动的早期计划阶段;（4）言语产生可增加手运动皮层的兴奋性。作者由此认为,言语加工与手势间的联系不仅表现为神经通路的重叠和相互激活,而且可能在外显行为上也相互影响     

Interference Effects from Observed Movement in Parkinson's Disease

Previous research has demonstrated that Parkinson's disease patients have an increased susceptibility to response conflict. In the present study, the authors investigate whether Parkinson's patients have a similar sensitivity to interference from observed movements. In all, 10 patients and 10 controls performed horizontal and vertical arm movements while watching a video of either a person performing similar movements or a moving dot. Movements were performed in the same plane (congruent) and orthogonal to the observed movement (incongruent). The off-axis variance of movements was our index of interference. Although patients tended to exhibit more off-axis variability than did controls, both groups demonstrated similar congruence effects, with greater variance in incongruent conditions. These results indicated that increased susceptibility to interference in Parkinson's disease does not extend to interference from observed movements.     

First things first: infants make good use of the sympathetic rhythm of imitation,without reason or language

Research on communication with infants, including newborns, has demonstrated that imitations in great variety play many different parts, and with emotions of interest and pleasure. Matching another's actions may seek attention and provoke reply, accept or reject advances, express admiration or mockery. It seems best to regard imitating as one way that persons express and receive sympathetic awareness, one manifestation of the intuitive readiness to move rhythmically with others in games of sociability. Infants exhibit growing awareness of how to cooperate with others in gaining knowledge and skills. The intersubjective intuitions that are active early in life and that build trust and companionship must be significant for therapists who work with young patients for whom communication is difficult. Imitating and accepting imitations can build reciprocal confidence.     

Therapeutic action in psychoanalytic therapy with toddlers and parents

Psychotherapy with toddlers and parents can focus on promoting attachment, facilitating development and improving interactions. Some techniques provide guidance to the parents, whereas others interpret to them their unconscious fantasies or ‘ghosts’ contributing to the child’s disorder. A recent paper introduced a psychoanalytically oriented technique, which emphasised the therapist’s interaction with the child in the presence of the parent(s). The child was addressed about his/her unconscious motivations in the session and the feelings towards the therapist. Also, the parent’s transference onto the therapist was seen as a vehicle that might further the therapeutic process and was accordingly addressed. The present paper analyses the therapeutic action in such treatments. Whereas work with the parents resembles that of ordinary psychodynamic therapy, therapeutic action is more difficult to conceptualise regarding the toddler, whose understanding of verbal interpretations and the therapist’s dialogues with the parent is more limited than that of an adult. However, a clinical vignette demonstrates a toddler’s precise and swift reactions to communications from mother or therapist. The paper investigates evidence from neuroscience and psychological research as to which communicative channels – beyond words – toddlers might perceive and comprehend. In addition, it is claimed that the countertransference is key to explaining how the therapist understands such communication.     

镜像神经系统—研究药物依赖行为的新靶点

镜像神经是近年来认知与大脑神经科学研究中崭新的课题,大量实验证实了镜像神经元(系统)参与到了多种心理能力的发展与进化之中。目前有研究发现,吸烟相关线索会激活尼古丁成瘾者大脑相应的动作脑区,而该区域也正是人类镜像神经区域,这意味着镜像神经在相关线索激发的心理渴求中可能扮演了重要角色。该实验结果有重要的意义,动作计划脑区的神经线索反应为发展可靠的依赖行为的生物学标记提供了另一个新目标,不仅开发了一个新型的依赖行为的理论模型,还为把神经科学的研究发现运用到实践应用打下了良好的基础。     

心灵如何被感知:从松果体到镜像神经元

文章从笛卡尔的身心交感论开始,探讨了松果体在身心交互中的重要地位,并分心理主义、行为主义、认知主义三个阶段,描述了心理学回答"心灵如何被感知"的两条途径:心灵内省与行为反映。最后,文章特别描述了新近发现的镜像神经元,认为它可能是当代心理学体系内的"笛卡尔式松果体",是沟通身体活动与心理状态、自我与他人心理状态的桥梁。未来,镜像神经元在心理学研究中的地位,可能与松果体在笛卡尔体系内的地位一样重要。     

From imitation to conversation: the first dialogues with human neonates

The functional maturity of the newborn infant's brain, the resemblances between neonatal imitation and imitation in adults and the possibly lateralized neonatal imitation suggest that the mirror neuron system may contribute to neonatal imitation. Newborn infants not only imitate but also initiate previously imitated gestures, and are able to participate in overlapping imitation–initiation communicative cycles. Additionally, these social responses in neonates are faster than previously thought, and may enable them to have long‐lasting intimate interactions much before language develops. Infants are equipped with a powerful, innate, reciprocal communicative ability already at birth. The earliest communication originates from imitation and this communicative ability presumably later evolves to language. Copyright © 2006 John Wiley & Sons, Ltd.     

Mirror neurons and the phenomenology of intersubjectivity

The neurological discovery of mirror neurons is of eminent importance for the phenomenological theory of intersubjectivity. G. Rizzolatti and V. Gallese found in experiments with primates that a set of neurons in the premotor cortex represents the visually registered movements of another animal. The activity of these mirror neurons presents exactly the same pattern of activity as appears in the movement of one's own body. These findings may be extended to other cognitive and emotive functions in humans. I show how these neurological findings might be “translated” phenomenologically into our own experienced sensations, feelings and volitions.