Origins of a theory of mind

Twenty-two pairs of typically developing toddlers (M = 24.32 months) and their mothers were observed in a play-room solving puzzles during 30 min. The target of the observations was hand-taking gesture. Researchers have thought that this gesture is rare among typically developing children and is more frequent among autistic children. Ten in 22 children showed this gesture in only 30 min. They should know “I can not do it by myself, but my mother can do it.” When we can assume that children know others’ mental mechanism, it might be the origins of a theory of mind.     

The semantic specificity of gestures when verbal communication is not possible: The case of emergency evacuation

The aim of the present study was to examine the comprehension of gesture in a situation in which the communicator cannot (or can only with difficulty) use verbal communication. Based on theoretical considerations, we expected to obtain higher semantic comprehension for emblems (gestures with a direct verbal definition or translation that is well known by all members of a group, or culture) compared to illustrators (gestures regarded as spontaneous and idiosyncratic and that do not have a conventional definition). Based on the extant literature, we predicted higher semantic specificity associated with arbitrarily coded and iconically coded emblems compared to intrinsically coded illustrators. Using a scenario of emergency evacuation, we tested the difference in semantic specificity between different categories of gestures. 138 participants saw 10 videos each illustrating a gesture performed by a firefighter. They were requested to imagine themselves in a dangerous situation and to report the meaning associated with each gesture. The results showed that intrinsically coded illustrators were more successfully understood than arbitrarily coded emblems, probably because the meaning of intrinsically coded illustrators is immediately comprehensible without recourse to symbolic interpretation. Furthermore, there was no significant difference between the comprehension of iconically coded emblems and that of both arbitrarily coded emblems and intrinsically coded illustrators. It seems that the difference between the latter two types of gestures was supported by their difference in semantic specificity, although in a direction opposite to that predicted. These results are in line with those of Hadar and Pinchas‐Zamir (2004), which showed that iconic gestures have higher semantic specificity than conventional gestures.     

The origin of language and relative roles of voice and gesture in early communication development

Both vocalization and gesture are universal modes of communication and fundamental features of language development. The gestural origins theory proposes that language evolved out of early gestural use. However, evidence reported here suggests vocalization is much more prominent in early human communication than gesture is. To our knowledge no prior research has investigated the rates of emergence of both gesture and vocalization across the first year in human infants. We evaluated the rates of gestures and speech-like vocalizations (protophones) in 10 infants at 4, 7, and 11 months of age using parent-infant laboratory recordings. We found that infant protophones outnumbered gestures substantially at all three ages, ranging from >35 times more protophones than gestures at 3 months, to >2.5 times more protophones than gestures at 11 months. The results suggest vocalization, not gesture, is the predominant mode of communication in human infants in the first year.     

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     

Development and Validation of the Weekly Stress Inventory-Short Form

The Weekly Stress Inventory (WSI) has been used both in research and in clinical settings to measure minor stress. Although this tool offers a reliable and valid measure to assess minor stress, it lacks brevity that would make it more feasible for rapid assessments of stress needed in many research and clinical settings. The current study assessed the psychometrics of the newly developed Weekly Stress Inventory Short Form (WSI-SF), a 25-item scale to measure minor stress. Adults attending general medicine clinics (n = 171) at a public teaching hospital completed the WSI-SF and the WSI. The WSI-SF was found to have good internal consistency for both the events score (.92) and impact score (.91) and good convergent validity with the WSI. The results of the present study suggest that the WSI-SF is a reliable and valid instrument for use in assessing minor stress.     

Mirror Neurons and the Evolution of Embodied Language

ABSTRACT— Mirror neurons are a class of neurons first discovered in the monkey premotor cortex that activate both when the monkey executes an action and when it observes the same action made by another individual. These neurons enable individuals to understand actions performed by others. Two subcategories of mirror neurons in monkeys activate when they listen to action sounds and when they observe communicative gestures made by others, respectively. The properties of mirror neurons could constitute a substrate from which more sophisticated forms of communication evolved; this would make sense, given the anatomical and functional homology between part of the monkey premotor cortex and Broca's area (the "speech" area of the brain) in humans. We hypothesize that several components of human language, including some aspects of phonology and syntax, could be embedded in the organizational properties of the motor system and that a deeper knowledge of this system could shed light on how language evolved.     

Atmospheric memories: Affect and minor politics at the ten-year anniversary of the London bombings

This paper addresses how the ten-year anniversary of the London bombings was made present through political affects and atmospheres on 7 July 2015. Although the anniversary of a terrorist event forms an opportune moment for invoking the nation as united in feeling, we are interested in how people attune to political atmospheres of memory and trauma in multiple ways, which do not always cohere to sovereign narratives about unity and certainty. By focusing on these events through an attentiveness to the atmospheric and affective, we examine how these events were recalled, memorialised, felt and sensed in the small-scale ceremonies taking place across London on that morning, by way of a multi-authored sensory auto-ethnography. As such, we are led towards various moments of encounter, which involve ‘minor gestures’ (Manning, 2016), and imply ways of responding to acts of terror that rub against the unifying forces of the state. In contrast to the ‘rolling maelstroms of affect’ (Thrift 2004: 57) pursued by the state and media following a terrorist attack, this project is attentive to multiple, uncertain and ambivalent encounters. These matter because they suggest other ways of being political and of responding to both terrorist and state-led violence.     

A sad thumbs up: incongruent gestures and disrupted sensorimotor activity both slow processing of facial expressions

Recognising a facial expression is more difficult when the expresser's body conveys incongruent affect. Existing research has documented such interference for universally recognisable bodily expressions. However, it remains unknown whether learned, conventional gestures can interfere with facial expression processing. Study 1 participants (N?=?62) viewed videos of people simultaneously producing facial expressions and hand gestures and reported the valence of either the face or hand. Responses were slower and less accurate when the face-hand pairing was incongruent compared to congruent. We hypothesised that hand gestures might exert an even stronger influence on facial expression processing when other routes to understanding the meaning of a facial expression, such as with sensorimotor simulation, are disrupted. Participants in Study 2 (N?=?127) completed the same task, but the facial mobility of some participants was restricted, which disrupted face processing in prior work. The hand-face congruency effect from Study 1 was replicated. The facial mobility manipulation affected males only, and it did not moderate the congruency effect. The present work suggests the affective meaning of conventional gestures is processed automatically and can interfere with face perception, but does not suggest that perceivers rely more on gestures when sensorimotor face processing is disrupted.     

The Discriminatory Gesture: A Psychoanalytic Consideration of Posttraumatic Reactions to Incidents of Racial Discrimination

This article provides a basic psychological conceptualization of racial trauma. It considers how seemingly minor instances of bias or discrimination can lead to posttraumatic reactions, the proportions of which can be hard to understand from the outside. I propose to describe this non-extraordinary event of racially biased treatment as the discriminatory gesture in order to emphasize its fluidity and pervasiveness as an interpersonal event. Being the subject of a discriminatory gesture represents a unique source of trauma, particularly because it derives its destructive power from its occurrence in a wider contemporary context of pervasive racism, white supremacy, and the historical context of slavery.