Expression without recognition: contributions of the human amygdala to emotional communication

A growing body of evidence from humans and other animals suggests the amygdala may be a critical neural substrate for emotional processing. In particular, recent studies have shown that damage to the human amygdala impairs the normal appraisal of social signals of emotion, primarily those of fear. However, effective social communication depends on both the ability to receive (emotional appraisal) and the ability to send (emotional expression) signals of emotional state. Although the role of the amygdala in the appraisal of emotion is well established, its importance for the production of emotional expressions is unknown. We report a case study of a patient with bilateral amygdaloid damage who, despite a severe deficit in interpreting facial expressions of emotion including fear, exhibits an intact ability to express this and other basic emotions. This dissociation suggests that a single neural module does not support all aspects of the social communication of emotional state.     

布洛贝尔的诺贝尔奖:想象变成了现实

1980年,克丽丝·纽丝兰—沃哈德和埃里克·韦乔斯开始研究果蝇中的胚胎致死突变,这项研究后来获得了诺贝尔奖,在某种意义上,它标志着生物学一个富有魅力的理论时代的终结和缺乏想象力的事实时代的到来(这个短语出自于Ｔ.Ｈ.赫胥黎,他认为悲剧就是“富有魅力的理论被缺乏想象力的事实所扼杀”)。如果沃森和克里克的ＤＮＡ双链结构模型显示了想象力(只具有不多的事实)可以超越自然,那么,纽丝兰—沃哈德和韦乔斯的饱和筛选法则表明进化能够产生如此难以想象的复杂的生物学机制,以致如果以直觉的方法来研究它们,既使不是可笑的,也是毫无用处的。…     

The relative effects of the frostig program, corrective reading instruction, and attention upon the reading skills of corrective readers with visual perceptual deficiencies

How effective are the Frostig training program and corrective reading instruction for improving the reading and visual-motor skills of pupils who possess deficiencies in both areas? Each of the three teachers worked each school day for sixteen weeks with the subjects of the two treatment groups plus a play placebo group. On the basis of the results of this study there is little, if any, support for the use of the Frostig program or corrective reading as treatments to improve the reading skills of children considered to possess a visual-motor problem. Due to the performances of the attention-placebo group, it is logical to hypothesize that improvements of the remedial groups are more a function of personal attention than the unique remedial powers of the two treatments. Consideration should be given to the optimal number of Frostig sessions as well as to the possibility of a ceiling effect of the Frostig program. Eight weeks of training would appear to be the maximum time before regression or improvement takes place.     

John A. Snyder

Conclusion Wise counseling can relieve the anxiety and inner conflict of parents torn between the dread of their retarded offspring becoming a parent and the fear of an operation they believe to be illegal, immoral, and castrating.By knowing where to refer patients, clergymen can make it possible for some of these deprived members of society to find support and love within marriage without being overburdened by children they are not capable of rearing properly.     

Exposure to violent media: the effects of songs with violent lyrics on aggressive thoughts and feelings

Five experiments examined effects of songs with violent lyrics on aggressive thoughts and hostile feelings. Experiments 1, 3, 4 and 5 demonstrated that college students who heard a violent song felt more hostile than those who heard a similar but nonviolent song. Experiments 2-5 demonstrated a similar increase in aggressive thoughts. These effects replicated across songs and song types (e.g., rock, humorous, nonhumorous). Experiments 3-5 also demonstrated that trait hostility was positively related to state hostility but did not moderate the song lyric effects. Discussion centers on the potential role of lyric content on aggression in short-term settings, relation to catharsis and other media violence domains, development of aggressive personality, differences between long-term and short-term effects, and possible mitigating factors.     

Emotional convergence between people over time

The authors propose that people in relationships become emotionally similar over time--as this similarity would help coordinate the thoughts and behaviors of the relationship partners, increase their mutual understanding, and foster their social cohesion. Using laboratory procedures to induce and assess emotional response, the authors found that dating partners (Study 1) and college roommates (Studies 2 and 3) became more similar in their emotional responses over the course of a year. Further, relationship partners with less power made more of the change necessary for convergence to occur. Consistent with the proposed benefits of emotional similarity, relationships whose partners were more emotionally similar were more cohesive and less likely to dissolve. Discussion focuses on implications of emotional convergence and on potential mechanisms.     

The aggression paradox: understanding links among aggression,sensation seeking,and the consideration of future consequences

Four studies involving 573 female and 272 male college students demonstrated that multiple forms and measures of aggression were associated with high levels of sensation seeking, impulsivity, and a focus on the immediate consequences of behavior. Multiple regression analyses and structural equation models supported a theoretical model based on the general aggression model (C.A. Anderson & B.J. Bushman. 2002), positing that hostile cognition and negative affect mediate the relationships between the aforementioned individual differences and aggression. Sensation seeking also predicted a desire to engage in physical and verbal aggression. The final study demonstrated that relative to those scoring low, individuals scoring high on the consideration of future consequences are only less aggressive when aggression is likely to carry future costs.     

The psychology of doing nothing: forms of decision avoidance result from reason and emotion

Several independent lines of research bear on the question of why individuals avoid decisions by postponing them, failing to act, or accepting the status quo. This review relates findings across several different disciplines and uncovers 4 decision avoidance effects that offer insight into this common but troubling behavior: choice deferral, status quo bias, omission bias, and inaction inertia. These findings are related by common antecedents and consequences in a rational-emotional model of the factors that predispose humans to do nothing. Prominent components of the model include cost-benefit calculations, anticipated regret, and selection difficulty. Other factors affecting decision avoidance through these key components, such as anticipatory negative emotions, decision strategies, counterfactual thinking, and preference uncertainty, are also discussed.     

The Newell Test for a theory of cognition

Newell (1980; 1990) proposed that cognitive theories be developed in an effort to satisfy multiple criteria and to avoid theoretical myopia. He provided two overlapping lists of 13 criteria that the human cognitive architecture would have to satisfy in order to be functional. We have distilled these into 12 criteria: flexible behavior, real-time performance, adaptive behavior, vast knowledge base, dynamic behavior, knowledge integration, natural language, learning, development, evolution, and brain realization. There would be greater theoretical progress if we evaluated theories by a broad set of criteria such as these and attended to the weaknesses such evaluations revealed. To illustrate how theories can be evaluated we apply these criteria to both classical connectionism (McClelland & Rumelhart 1986; Rumelhart & McClelland 1986b) and the ACT-R theory (Anderson & Lebiere 1998). The strengths of classical connectionism on this test derive from its intense effort in addressing empirical phenomena in such domains as language and cognitive development. Its weaknesses derive from its failure to acknowledge a symbolic level to thought. In contrast, ACT-R includes both symbolic and sub-symbolic components. The strengths of the ACT-R theory derive from its tight integration of the symbolic component with the sub-symbolic component. Its weaknesses largely derive from its failure, as yet, to adequately engage in intensive analyses of issues related to certain criteria on Newell's list.