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61.
In experiment 1, pigeons were trained to match temporal (2, 8, and 10 s of houselight) and location (feeder light, left key,
center key illumination) samples to color comparison stimuli. Red choices were correct following the 2-s and feeder light,
orange choices were correct following the 8-s and center key, and green choices were correct following the 10-s and left key.
Samples that were harder to discriminate (8- vs 10-s, and left vs center key) were mapped onto comparisons that were easy
to discriminate (orange vs green), while samples that were easier to discriminate (2- vs 8-s, and feeder light vs left key)
were mapped onto comparisons that were hard to discriminate(red vs orange). The pattern of errors for temporal and location
samples indicated that these samples were not represented by a common code even though they were associated with the same
comparison stimuli. In experiment 2, the same pigeons were trained with visual samples in which samples that were hard to
discriminate (triangle vs circle) were mapped onto comparisons that were easy to discriminate (orange vs green), while samples
that were easy to discriminate(plus vs triangle) were mapped onto comparisons that were hard to discriminate (red vs orange).
Following acquisition of the visual discrimination, the temporal samples were re-introduced and many-to-one training was continued.
During delay testing, the pattern of errors for temporal and visual samples was equivalent and consistent with the hypothesis
that visual samples were being coded in terms of the duration appropriate for the temporal sample with which it shared a common
comparison response. Data from no-sample test sessions ruled out a simple response bias explanation of the data. The properties
of common codes for temporal and nontemporal events can be somewhat flexible and more complicated than previously envisaged.
Received: 21 January 1998 / Accepted after revision: 5 April 1998 相似文献
62.
The task of supporting an object with one or two hands was used to test the applicability of the notion of synergy. Subjects sat with their dominant forearm supported up to the wrist while holding a cylindrical “cup” between their thumb and fingers. Force transducers recorded the grip force applied normal to the cup's side by the thumb and the force applied normal to the cup bottom. On different series, a supporting force was added to and released from the bottom of the cup by the subject's non-dominant hand or by the experimenter. As predicted, the results indicated feedforward adjustments of the grip force, and of the EMGs, and significant correlations between grip force and supporting force when they were produced by two hands of one person, and the lack of such closely tied changes when the two forces were produced by two different persons. In the latter case, different subjects could demonstrate grip force changes in different directions. The findings suggest that grip force adjustments represented peripheral patterns of a single central process (a single synergy) rather than being separately controlled focal and postural components of the action.PsycINFO classification: 2330 相似文献
63.
《Psychologie Fran?aise》2016,61(3):177-190
Temporal orientation is an essential data of the human psyche that modulates how we relied to the times of life. This survey describes the creation of a psychometric measure of temporal orientation in young French adults. Starting with the observation that temporal orientation is difficult for youngsters, a team of psychologists developed a preliminary version of the instrument. The psychometric validity of the test has been analyzed. The data have been collected on 507 high school students and academic students in the region of Nantes. An exploratory factorial analysis shows four dimensions: “short-term”, “immediately”, “anticipation” and “long-term”. The internal consistency is generally satisfactory and the measure of convergence confirms the external validity. The weak interrelationships between dimensions indicate distinct psychological constructs. A validated version composed of 30 items of the Temporal Orientation Test (TOT) is proposed. 相似文献
64.
Mother's marital satisfaction associated with the quality of mother‐father‐child triadic interaction 下载免费PDF全文
Riikka Korja Jorma Piha Riia Otava Chloe Lavanchy‐scaiola Sari Ahlqvist‐Björkroth Minna Aromaa Hannele Räihä STEPS‐study 《Scandinavian journal of psychology》2016,57(4):305-312
Low marital satisfaction has been shown to be a risk factor for early parenthood and parent‐child relationship problems (Erel & Burman, 1995 ; McHale, 1995 ). The aim of this study was to assess how parental reports of marital satisfaction related to family alliance and coordination in the observed triadic interaction. The study group included 120 families. Marital satisfaction was evaluated during pregnancy, at 4 months, and at 18 months using the Revised Dyadic Adjustment Scale (RDAS; Busby, Christensen, Crane & Larsson, 1995 ) for both parents. Mother‐father‐child interaction was analyzed in the Lausanne Triadic Play setting and coded using the Family Alliance Assessment Scale (Favez, Lavanchy Scaiola, Tissot, Darwiche & Frascarolo, 2011 ) when the child reached 18 months of age. The mother's higher marital satisfaction at every measuring point was associated with a cooperative family alliance and/or higher family coordination at 18 months. The father's experience of marital satisfaction was not related to family interaction at any assessment point. Our study suggests that a mother's experience of lower marital satisfaction during pregnancy may be an early sign of later problems in family relationships. 相似文献
65.
Dong-Yuan Debbie Wang F. Dan Richard Brittany Ray 《Quarterly journal of experimental psychology (2006)》2016,69(8):1648-1656
The stimulus–response correspondence (SRC) effect refers to advantages in performance when stimulus and response correspond in dimensions or features, even if the common features are irrelevant to the task. Previous research indicated that the SRC effect depends on the temporal course of stimulus information processing. The current study investigated how the temporal overlap between relevant and irrelevant stimulus processing influences the SRC effect. In this experiment, the irrelevant stimulus (a previously associated tone) preceded the relevant stimulus (a coloured rectangle). The irrelevant and relevant stimuli onset asynchrony was varied to manipulate the temporal overlap between the irrelevant and relevant stimuli processing. Results indicated that the SRC effect size varied as a quadratic function of the temporal overlap between the relevant stimulus and irrelevant stimulus. This finding extends previous experimental observations that the SRC effect size varies in an increasing or decreasing function with reaction time. The current study demonstrated a quadratic function between effect size and the temporal overlap. 相似文献
66.
There is a growing literature connecting poor motor coordination to physical and mental health outcomes in children and adolescents. These studies suggest that children with disorders such as developmental coordination disorder (DCD) are at greater risk for depression and anxiety, as well as obesity, and poor physical fitness. With regard to internalizing problems (symptoms of depression and anxiety), there is also evidence to suggest that the environment may play an important role in the etiology of psychological distress in this population. Cairney, Veldhuizen, & Szatmari, 2010 used the phrase “environmental stress hypothesis” to highlight the role that negative exposure to personal and interpersonal stressors might play in accounting for higher rates of internalizing symptoms in children with DCD. In this paper, we elaborate further on this basic premise, offering a model linking DCD to internalizing problems based on Pearlin’s stress process framework. In addition to stressors (risk) and protective factors, we incorporate both physical activity and obesity into our stress model. Next, we review the existing literature to see if there is evidence supporting specific components (pathways) of the model. In doing so, areas in need of further research are identified. Implications for intervention are also provided. 相似文献
67.
Larry E. Beutler 《Journal of motor behavior》2013,45(3):207-215
40 deaf and 40 hearing children representing 2 age groups were blindfolded and presented with 3 high-relief finger mazes of increasing complexity. It was found that young deaf children performed the most difficult task more efficiently than comparable hearing children. Contrary to previous findings, hearing children showed no advantage over deaf children on any of the three tasks as a result of their supposed greater facility with verbal conceptual mediators. The results were interpreted as supporting the idea that deaf children compensate for their auditory lack and verbal deficiency by developing problem solving skills that maximize sensitivity to other sensory modalities. 相似文献
68.
Herbert Heuer 《Journal of motor behavior》2013,45(2):130-142
In rapid finger tapping, occasional intertap intervals of about twice the normal length or even longer, called blockings, can be observed. Skilled rapid tapping requires that flexor and extensor activity be timed so that they coincide with certain phases of the finger movement. In the present study, the hypothesis examined was that blockings are associated with a deviation from the proper timing relations between the more proximal signals (electromyographic [EMG] bursts) and the more distal signal (position-time curve of the finger). Participants (N = 8) performed up-and-down tapping. Blockings were compared with the preceding normal tapping cycles; a temporal forward shift of the flexor burst in the time interval between two kinematic landmarks—the lifting of the finger and the reversal of the movement—was found consistently in the blockings The phase shift of the flexor burst relative to the kinematic landmarks did not develop gradually in the course of the tapping cycles that preceded the blocking but was an abrupt deviation, which suggests that blockings occur with an increased likelihood as the extremes of the normal variability of the phase relation are approached. 相似文献
69.
Muscle coordination of isometric force production can be explained by a smaller number of modules. Variability in force output, however, is higher during exploratory/transient force development phases than force maintenance phase, and it is not clear whether the same modular structure underlies both phases. In this study, eight neurologically-intact adults isometrically performed target force matches in 54 directions at hands, and electromyographic (EMG) data from eight muscles were parsed into four sequential phases. Despite the varying degree of motor complexity across phases (significant between-phase differences in EMG-force correlation, angular errors, and between-force correlations), the number/composition of motor modules were found equivalent across phases, suggesting that the CNS systematically modulated activation of the same set of motor modules throughout sequential force development. 相似文献
70.
Jon Garthoff 《Ethical Theory and Moral Practice》2004,7(1):15-29
In this essay I articulate and defend a thesis about the nature of morality called “the embodiment thesis”. The embodiment
thesis states that moral values underdetermine the obligations and entitlements of individual persons, and that actual social
institutions must embody morality by specifying these moral relations. I begin by presenting two thought experiments that
elucidate and motivate the embodiment thesis. I then proceed by distinguishing the embodiment thesis from a Rawlsian doctrine
about the nature of justice, from the doctrine of moral relativism, and from solutions to the coordination problem of rational
choice theory. 相似文献