DETECTION OF THE VELOCITY OF MOVEMENT OF VISUAL STIMULI BY PIGEONS

Nine pigeons were trained to discriminate a moving stimulus from a stationary stimulus. In one experiment, the stimulus was a rotating disc with radial stripes. In a second experiment, the stimulus was a vertically moving film strip with horizontal bars. Several psychophysical procedures were used to determine the minimal detectable velocity of movement. The detection thresholds for most of the pigeons fell in the range of 4.4 to 6.5 millimeters per second, corresponding to a retinal velocity of 4.1 to 6.01 degrees per second. A signal detection analysis of the psychophysical data indicated systematic changes in response bias that were related to the ordinal position of the stimulus velocity in the sequence.     

MATURE CONTEMPLATION

Abstract. This chapter extends biogenetic structural theory to a consideration of the biopsychological principles underlying higher phases of consciousness, particularly those attained by the systematic exploration of consciousness called contemplation. The concepts of psychic energy, flow, centeredness, energy circulation, and dreambody are explored as presented in various mystical traditions, and a model of the underlying neurophysiology is presented in terms of ergotropic-trophotropic tuning. The psychophysiology of various forms of meditation together with emergent peak experiences is examined and integrated into the ergotropic-trophotropic tuning model. Structural invariance of ergotropic-trophotropic tuning as well as invariant aspects of contemplation across different cultures and associated with different symbol systems is considered. Finally the nature and implications of Void Consciousness, God Consciousness, or Abssolute Unitary Being are examined.     

Enhancement of conditioned autonomic responses in monkey when preshock signals occasion operant suppression.

Classical pairings of a sound stilulus with shock elicited larger magnitude and more rapidly conditioned autonomic responses when subjects were responding on variable-interval schedules for food than when they were eating freely available food. The difference was not attributable to changes in control values of heart rate and blood pressure, or to alterations in motor activity, but appeared related to operant suppression.     

Biobehavioral effects of extended salt loading and conflict stress in intact baboons.

Behavioral stressors may inhibit sodium excretion, potentially increasing plasma volume and elevating blood pressure during chronic exposure. Blood pressure regulation may be especially deranged during manipulations that further challenge the kidney, such as a diet high in salt content. The effects on blood pressure and other variables of combined behavioral stress (food/shock conflict) and dietary salt (12 g NaCl per day; 218 mEq Na+ per day) were examined in adult male baboons over the course of 1 year. Mean arterial pressure was not significantly elevated over baseline after 5 months of high dietary salt alone (6 +/- 5 mmHg) but was maximally elevated by an average of 17 (+/- 3 SEM) mmHg after 5 months of combined salt and conflict stress. Control baboons showed no significant trends in mean arterial pressure across the same time period. Individual subjects whose blood pressure was "salt+stress resistant" or "salt+stress sensitive" were differentiated by their degree of pressure diuresis and natriuresis, urinary free cortisol, and a behavioral index of stress sensitivity. The data indicate additive effects of chronic high dietary salt intake and behavioral stressors on blood pressure in nonhuman primates that are dependent on renal function and pituitary-adrenocortical activity.     

让智慧插上创造的翅膀：创造动力系统的激活及其条件

创造力是一个集个人、团体、社会、文化相互交织的系统, 因此创造力的培养也需要综合考虑。本文在融合以往创造力研究的基础上, 建构了一套系统创造力培养的“蝴蝶理论”, 创造力培养需要抓住核心来统领全局, 同时兼顾创造力培养所需要统筹兼顾的各个部分。动力系统的激活是创造力培养的核心。新颖、适用的创造性成果的产出, 需要社会文化中的个体或团体在创造性心理动力的基础上来完成。创造性心理动力有效的激活则需要一些基本条件, 如在认知层面, 需要具备一定的能力, 如一般认知能力、思维方法的掌握、元认知以及高效的资源整合能力等; 在非智力因素方面, 基本心理需要的满足, 个性心理的健康发展等是创造力得以发挥的必要条件, 推而广之还包括：合理的社会支持、互动以及文化的包容等等。除了理论方面的整合, 本文还从实践的角度分析如何激活学生的动力系统, 重点分析了什么是兴趣以及如何激发个体的兴趣, 因为以兴趣爱好为核心的内部动机是自主性最高的动力来源。本文从理论(创造力培养的蝴蝶理论)与实践(创造力培养的兴趣激发)两个角度为创造力培养提供了支持。     

青少年网络小说阅读对自我概念清晰性的影响：角色认同和沉浸感的中介作用

为探讨网络小说阅读与青少年自我概念清晰性的关系以及角色认同和沉浸感在其中的中介作用,本研究对有网络小说阅读经验的480名中学生进行问卷调查。结果发现：（1）网络小说阅读、角色认同、沉浸感两两之间显著正相关,且均与自我概念清晰性呈显著负相关;（2）网络小说阅读通过角色认同和沉浸感的中介作用对青少年自我概念清晰性产生负面影响,且该中介作用包含了三条路径——角色认同、沉浸感的简单中介作用以及角色认同—沉浸感的序列中介作用。这一结论有助于引导青少年健康阅读网络文学,并促进其自我概念发展。     

The Conceptualization of Team Flow

Despite the noted potential for team flow to enhance a team's effectiveness, productivity, performance, and capabilities, studies on the construct in the workplace context are scarce. Most research on flow at the group level has been focused on performance in athletics or the arts, and looks at the collective experience. But, the context of work has different parameters, which necessitate a look at individual and team level experiences. In this review, we extend current theories and essay a testable, multilevel model of team flow in the workplace that includes its likely prerequisites, characteristics, and benefits.     

Poor emotional responsiveness in clinical hypertension: Reduced accuracy in the labelling and matching of emotional faces amongst individuals with hypertension and prehypertension

Psychological factors are known to play an important part in the origin of many medical conditions including hypertension. Recent studies have reported elevated blood pressure (even in the normal range of variation) to be associated with a reduced responsiveness to emotions or ‘emotional dampening’. Our aim was to assess emotional dampening in individuals with more extreme blood pressure levels including prehypertensives (N = 58) and hypertensives (N = 60) by comparing their emotion recognition ability with normotensives (N = 57). Participants completed novel facial emotion matching and facial emotion labelling tasks following blood pressure measurement and their accuracy of emotion recognition and average response times were compared. The normotensives demonstrated a significantly higher accuracy of emotion recognition than the prehypertensives and the hypertensives in labelling of facial emotions. This difference generalised to the task where two facial halves (upper & lower) had to be matched on the basis of emotions. In neither the labelling nor matching emotion conditions did the groups differ in their speed of emotion processing. Findings of the present study extend reports of ‘emotional dampening’ to hypertensives as well as to those at-risk for developing hypertension (i.e. prehypertensives) and have important implications for understanding the psychological component of such medical conditions as hypertension.