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In apes, four criteria are set to explore referential and intentional communication: (1) successive visual orienting between
a partner and distant targets, (2) the presence of apparent attention-getting behaviours, (3) the requirement of an audience
to exhibit the behaviours, and (4) the influence of the direction of attention of an observer on the behaviours. The present
study aimed at identifying these criteria in behaviours used by dogs in communicative episodes with their owner when their
toy is out of reach, i.e. gaze at a hidden target or at the owner, gaze alternation between a hidden target and the owner,
vocalisations and contacts. In this study, an additional variable was analysed: the position of the dog in relation to the
location of the target. Dogs witnessed the hiding of a favourite toy, in a place where they could not get access to. We analysed
how dogs engaged in communicative deictic behaviours in the presence of their owner; four heights of the target were tested.
To control for the motivational effects of the toy on the dogs’ behaviour and for the referential nature of the behaviours,
observations were staged where only the toy or only the owner was present, for one of the four heights. The results show that
gazing at the container and gaze alternation were used as functionally referential and intentional communicative behaviours.
Behavioural patterns of dog position, the new variable, fulfilled the operational criteria for functionally referential behaviour
and a subset of operational criteria for intentional communication: the dogs used their own position as a local enhancement
signal. Finally, our results suggest that the dogs gazed at their owner at optimal locations in the experimental area, with
respect to the target height and their owner’s (or their own) line of gaze. 相似文献
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Valérie Frède Gavin Nobes Sören Frappart Georgia Panagiotaki Bertrand Troadec Alan Martin 《Infant and child development》2011,20(6):432-448
Studies of children's knowledge of the Earth have led to very different conclusions: some appear to show that children construct their own, non‐scientific ‘theories’ (mental models) of the flat, hollow or dual Earth. Others indicate that many young children have some understanding of the spherical (scientific) Earth, and that their knowledge lacks the coherence of mental models. The reasons for these contrasting views were tested by interviewing French children (N = 178) aged 5–11 years and varying the different methods used in previous research, namely the types of questions (open and forced‐choice), the form of representation (two‐dimensional pictures and three‐dimensional models), and the method of analysis (the mental model theorists' coding scheme and a statistical test for associations using MANOVA). Forced‐choice questions resulted in higher proportions of scientific answers than open questions, and children appeared to have naïve mental models of the Earth only when the mental model theorists' coding scheme was used. These findings support the view that children tend to have ‘fragments’ of scientific knowledge, and that naïve mental models of the Earth are methodological artifacts. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
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To explore an alternative solution more appropriate to clinical standards than random assignment, 42 mothers consulting for a functional (sleep, feeding) or behavior problem of their infant were given the choice between two forms of mother–infant psychotherapy (Psychodynamic or Interaction Guidance). Clinicians, blind to mother's choice, followed a systematic indication procedure and provided a therapeutic recommendation. Results revealed a very high agreement between mother's choice and therapists' recommendation. Examination of patient and pretreatment variables showed no major differences between the two groups resulting from a choice of treatment procedure. This procedure proved to ensure internal validity of the data and was also able to guarantee external validity. Discussion focuses on the methodological and clinical implications of the findings that support the consideration of the patient as an active participant to his/her treatment. © 1998 Michigan Association for Infant Mental Health 相似文献
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Bertrand Cramer 《Infant mental health journal》1998,19(2):151-167
Evidence-based practice in psychotherapy is gaining ground, but we are in great need of more detailed study concerning some basic aspects: the interrelationships between nonspecific and specific factors and their impact on outcome and the precise observation of what goes on between therapist and patient. A comparison of two forms of mother–infant psychotherapy reveals an important gap between what therapists believe and what they actually do. We describe several components of processes: the contribution of the infant, the treatment of affect, the construction of an interpretative focus, and the relationships between cognitive and emotional contributions. These observations indicate the need for a more realistic appraisal of what goes on in technique applications, as well as for a widening of the definition of technique. © 1998 Michigan Association for Infant Mental Health 相似文献
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Michael Bertrand 《Synthese》2013,190(9):1503-1517
The survival enhancing propensity (SEP) account has a crucial role to play in the analysis of proper function. However, a central feature of the account, its specification of the proper environment to which functions are relativized, is seriously underdeveloped. In this paper, I argue that existent accounts of proper environment fail because they either allow too many or too few characters to count as proper functions. While SEP accounts retain their promise, they are unworkable because of their inability to specify this important feature. However, I suggest that this problem can be overcome by the application of a new strategy for specifying proper environment that is grounded in the operation of natural selection and I conclude by offering a first approximation of such an account. 相似文献
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Emmanuelle Kristensen Anne Guerin-Dugué Bertrand Rivet 《Behavior research methods》2017,49(6):2255-2274
The usual event-related potential (ERP) estimation is the average across epochs time-locked on stimuli of interest. These stimuli are repeated several times to improve the signal-to-noise ratio (SNR) and only one evoked potential is estimated inside the temporal window of interest. Consequently, the average estimation does not take into account other neural responses within the same epoch that are due to short inter stimuli intervals. These adjacent neural responses may overlap and distort the evoked potential of interest. This overlapping process is a significant issue for the eye fixation-related potential (EFRP) technique in which the epochs are time-locked on the ocular fixations. The inter fixation intervals are not experimentally controlled and can be shorter than the neural response’s latency. To begin, the Tikhonov regularization, applied to the classical average estimation, was introduced to improve the SNR for a given number of trials. The generalized cross validation was chosen to obtain the optimal value of the ridge parameter. Then, to deal with the issue of overlapping, the general linear model (GLM), was used to extract all neural responses inside an epoch. Finally, the regularization was also applied to it. The models (the classical average and the GLM with and without regularization) were compared on both simulated data and real datasets from a visual scene exploration in co-registration with an eye-tracker, and from a P300 Speller experiment. The regularization was found to improve the estimation by average for a given number of trials. The GLM was more robust and efficient, its efficiency actually reinforced by the regularization. 相似文献