Asymmetrical stabilization and mobilization exploited during static single leg stance and goal directed kicking

The motor control properties of the right and left legs are dependent on the stabilization and mobilization features of the motor tasks. The current investigation examined the right and left leg control differences – interlateral asymmetries – during static single leg stance and dynamic goal directed kicking with an emphasis of the asymmetrical stabilization and mobilization components of movements. Ten young, healthy, right-leg preferred individuals with minimal kicking experience completed both tests on each limb. During static single leg stance, participants were requested to stand as still as possible with one leg in contact with a force platform. Interlateral asymmetries of the standing leg were quantified using postural variability measures of the center of pressure (COP) standard deviation in the anterior-posterior (SD-COP_AP) and medial-lateral (SD-COP_ML) directions, resultant COP length and velocity, and 95% COP elliptical area. During dynamic goal directed kicking, participants stood on two adjacent force platforms in a side-by-side foot position and kicked a soccer ball toward three different directions as soon as they received an auditory cue of kicking. Three targets were located −30°, 0° or 30° in front and 3.05 m away from the participants’ midline. Participants kicked the ball toward the targets with each of their feet. The vertical ground reaction force (vGRF) of the kicking leg was used to define the preparation (from above two standard deviations of vGRF baseline to toe-off) and swing (from toe-off to toe-return) phases of dynamic kicking. To determine the presence of interlateral asymmetries during dynamic kicking, the magnitude and timing of the anticipatory postural adjustments (APA) during the preparation phase of kicking were quantified using the lateral net COP (COPnet-ML) time series derived from both force platforms. Postural variability measures of the support leg and the kinematic joint range of motion (JROM) trajectories of the kicking leg were also used to examined interlateral asymmetries. During static stance, no between-leg significance was identified for all dependent measures of COP variability suggesting symmetrical stabilization. During the preparation phase of kicking, both right and left leg kicking exhibited a similar level of APA magnitude, although the left leg kicking was shown to reach its maximum APA magnitude earlier than the right leg. In the support leg role, the right leg showed greater COP variability in the ML direction as compared to the left support leg and greater COP variability was observed when kicking in the ipsilateral direction compared to the center and contralateral directions. For mobilization control, the left kicking leg showed greater JROM displacements at the distal (knee and ankle) joints and reduced JROM primarily with hip frontal plane movements compared to the right kicking leg. The reported interlateral asymmetries during kicking may reflect a behavioral adaptation that results in differential stabilization between the right and left legs. Overall, the findings suggest that novel tasks, such as dynamic goal directed kicking, appear to be more sensitive than static balance in identifying interlateral asymmetries.     

Goal attribution to inanimate agents by 6.5-month-old infants

Human infants' tendency to attribute goals to observed actions may help us to understand where people's obsession with goals originates from. While one-year-old infants liberally interpret the behaviour of many kinds of agents as goal-directed, a recent report [Kamewari, K., Kato, M., Kanda, T., Ishiguro, H., & Hiraki, K. (2005). Six-and-a-half-month-old children positively attribute goals to human action and to humanoid-robot motion. Cognitive Development, 20, 303-320] suggested that younger infants restrict goal attribution to humans and human-like creatures. The present experiment tested whether 6.5-month-old infants would be willing to attribute a goal to a moving inanimate box if it slightly varied its goal approach within the range of the available efficient actions. The results were positive, demonstrating that featural identification of agents is not a necessary precondition of goal attribution in young infants and that the single most important behavioural cue for identifying a goal-directed agent is variability of behaviour. This result supports the view that the bias to give teleological interpretation to actions is not entirely derived from infants' experience.     

Commonalities and differences in characteristics of persons at risk for narcissism and mania

Clinicians have long noted overlap in some of the key features of narcissism and bipolar disorder, including excessively high goals and impulsivity. In addition, empirical findings consistently document high levels of comorbidity between the two conditions. To better understand the similarities and differences in psychological qualities associated with mania- and narcissism-related vulnerabilities, we administered to 233 undergraduates a broad range of measures pertaining to goals and affects (both their experience and their dysregulation) and impulsivity. As hypothesized, tendencies toward both narcissism and hypomania related to elevations on measures of affective and goal dysregulation. In addition, hypomania tendencies were related to higher impulsivity, but that association did not appear for narcissistic tendencies. Results highlight key commonalities and differences between those at risk for mania versus narcissism. Future research should examine these relationships in clinically diagnosed samples.     

The role of implicit motivation in hot and cold goal pursuit: Effects on goal progress, goal rumination, and emotional well-being

Two cross-sectional studies examined the role of implicit motivational needs in the association between personal goal pursuits and depressive symptoms and affect. Replicating and extending on findings reported by Brunstein et al. [Brunstein, J. C., Schultheiss, O. C., & Grässmann, R. (1998). Personal goals and emotional well-being: The moderating role of motive dispositions. Journal of Personality and Social Psychology, 75(2), 494–508], both studies provided evidence that goal progress significantly accounted for variations in depressive symptoms and happiness only in individuals with high levels of implicit motivation, but not in individuals low in implicit motivation. Moreover, in the absence of a strong sense of goal commitment, high levels of implicit motivation were associated with high goal progress in both studies and low levels of goal rumination in Study 2. These findings are interpreted within a dual-systems framework of motivation that distinguishes an implicit, intuitive, and hedonically driven from an explicit, effortful-analytical, and non-hedonic mode of goal pursuit.     

Obligatory and optional personal life investments in old and very old age: Validation and functional relations

Personal life investment (PLI) measures motivational energy invested in central life domains. We distinguished between obligatory PLIs, that is, required investments, and optional PLIs, that is, investments that are possible but not necessary. Data from the Berlin Aging Study (N = 516; 70–103 years) were employed to investigate the validity of this distinction. We further explored how both PLI types relate to aging satisfaction and whether associations with validation variables and satisfaction differed depending on resource limitations (poor health). As expected based on conceptual affinities between the distinctions of obligatory-optional PLI and approach-avoidance tendencies, both PLI types showed positive relations with extraversion (a correlate of approach), but only obligatory PLI was positively related to neuroticism (a correlate of avoidance). Optional PLI (not obligatory PLI) was related to higher aging satisfaction, but only in fairly healthy people. This underscores differential functional relations of optional PLI depending on resource availability.

Perceived consequences underlying approach goals and avoidance goals in relation to anxiety

Numerous studies have examined anxiety from a cognitive and affective perspective but relatively little research has studied anxiety from a motivational perspective. There are theoretical grounds (e.g., Gray, 1982) for expecting anxiety to be characterised by heightened avoidance motivation, but this motivational bias is not thought to be accompanied by diminished approach motivation. A cross-sectional, mixed model design was used to investigate individuals’ response-variations on personal approach and avoidance goal systems. A convenience sample comprising an anxious group (n = 41) and non-anxious group (n = 33) completed tasks that measured number of self-generated approach goals and avoidance goals, and number of associated positive and negative consequence steps for goals. As predicted, anxious individuals, relative to non-anxious individuals, generated more avoidance goals and more negative consequence steps in response to goal non-attainment (irrespective of goal type) but did not differ on number of approach goals or positive consequence steps in response to goal attainment (irrespective of goal type). The present findings highlight the importance of personal goal systems in understanding the nature of anxiety.     

Source‐Goal Asymmetries in Motion Representation: Implications for Language Production and Comprehension

Recent research has demonstrated an asymmetry between the origins and endpoints of motion events, with preferential attention given to endpoints rather than beginnings of motion in both language and memory. Two experiments explore this asymmetry further and test its implications for language production and comprehension. Experiment 1 shows that both adults and 4‐year‐old children detect fewer within‐category changes in source than goal objects when tested for memory of motion events; furthermore, these groups produce fewer references to source than goal objects when describing the same motion events. Experiment 2 asks whether the specificity of encoding source/goal relations differs in both spatial memory and the comprehension of novel spatial vocabulary. Results show that endpoint configuration changes are detected more accurately than source configuration changes by both adults and young children. Furthermore, when interpreting novel motion verbs, both age groups expect more fine‐grained lexical distinctions in the domain of endpoint configurations compared to that of source configurations. These studies demonstrate that a cognitive‐attentional bias in spatial representation and memory affects both the detail of linguistic encoding during the use of spatial language and the specificity of hypotheses about spatial referents that learners build during the acquisition of the spatial lexicon.     

Illegitimacy improves goal pursuit in powerless individuals

The effects of power legitimacy on self-regulation during goal pursuit were examined. Study 1 focused on goal-setting and goal-striving. Specifically, it examined how much time legitimate and illegitimate powerless individuals needed to set goals, and how many means they generated to pursue these goals. Study 2 examined persistence in the face of difficulties. Consistently across these studies illegitimacy improved self-regulation in powerless individuals. Illegitimate powerless individuals behaved similarly as control participants. They took less time to decide on a course of action, used more flexible means to strive for goals, and persisted longer in the face of difficulties, compared to their legitimate counterparts. The implications of these findings are discussed.     

High goal conflict and low goal meaning are associated with an increased likelihood of subsequent religious transformation in adolescents

Adolescence is one of the most common periods during which people report religious transformations (Regnerus & Uecker, 2006), but few studies have examined what variables might precipitate a transformation during this time. Based on early writings of James (1902) and Starbuck (1911), we tested the hypotheses that adolescents are more likely to experience a religious transformation when they have (a) lower global meaning, (b) lower goal meaning, and (c) higher goal conflict. Participants (N = 137) were adolescents living in Western Europe involved in a service trip with Young Life, an evangelical Christian organization. Participants with lower strivings meaning and higher strivings conflict before the trip were more likely to experience a religious transformation during the trip.     

在抑制分心物干扰效应上学困生和学优生的比较

采用Stroop颜色命名作业,在严格控制各种条件下探究重复分心物的促进效应是由习惯化机制还是由分心物连续抑制机制造成的问题,进而比较学困生和学优生在Stroop干扰效应、重复分心物促进效应和负启动效应上的差异,结果显示,重复分心物促进效应是由习惯化机制造成的。这种抑制机制,只有在分心物重复条件下才能发挥作用;因而其效用并不广泛;而负启动效应所指的分心物抑制机制却是一种效用广泛的抑制机制。并进而揭示,学困生和学优生都存在重复分心物促进效应,但因学困生的负启动效应比学优生小,所以学困生在Stroop色词干扰效应上大于学优生。