A Sensorimotor Basis for Motor Learning: Evidence Indicating Specificity of Practice

Our previous work (Proteau, Marteniuk, Girouard, & Dugas, 1987) was concerned with determining whether with relatively extensive practice on a movement aiming task, as the skill theoretically starts becoming open-loop, there would be evidence for a decreasing emphasis on visual feedback for motor control. We eliminated vision of the moving limb after moderate and extensive practice and found that the movement became more dependent on this feedback with greater amounts of practice. In the present study, we wished to test the hypothesis, developed from our previous work, that at the base of movement learning is a sensorimotor representation that consists of integrated information from central processes and sensory feedback derived from previous experiences on the movement task. A strong test of this hypothesis would be the prediction that for an aiming task, the addition of vision, after moderate and relatively extensive practice without vision, would lead to an increasingly large movement decrement, relative to appropriate controls. We found good support for this prediction. From these and previous results, and the idea of the sensorimotor representation underlying learning, we develop the idea that learning is specific to the conditions that prevail during skill acquisition. This has implications for the ideas of generalized motor program and schema theory.     

Duration perception of emotional stimuli: Using evaluative conditioning to avoid sensory confounds

It has been found that emotional pictures are estimated to last longer than neutral ones. However, emotional and neutral stimuli often differ in their physical characteristics, too. Since this might also affect time perception, we present a method disentangling a possible confounding regarding the processing of physically different stimulus material. In the evaluative condition paradigm, participants, at first, learnt the association of neutral images with a certain Landolt ring and of emotional images with another Landolt ring with a different gap position. The conditioned Landolt rings were subsequently used in a temporal bisection task. In two experiments, the results revealed a temporal overestimation of Landolt rings conditioned with emotional pictures compared to neutral pictures showing that the temporal overestimation of emotional stimuli cannot be attributed to perceptual differences between neutral and emotional stimuli. The method provides the potential for investigating emotional effects on various perceptual processes.     

counselor nonverbal self‐disclosure and fear of intimacy during employment counseling: an aptitude—treatment interaction illustration

This study investigated the effects of nonverbal self‐disclosure within the dynamic of aptitude—treatment interaction. Participants (N= 94) watched a video of a career counseling session aimed at helping the jobseeker to find employment. The video was then edited to display 3 varying degrees of nonverbal self‐disclosure. In conjunction with the measure of counselor assessment, the authors measured the fear‐of‐intimacy level by using the Doi and Thelen (1993) model. Results showed that when self‐disclosure does not have an effect on counselor assessment, a moderator effect due to the fear of intimacy becomes evident. Implications for research and practice are presented.     

Nudges and Cultural Variance: a Note on Selinger and Whyte

Selinger and Whyte argue that Thaler and Sunstein are insufficiently sensitive to cultural variance in Nudge. I construct a taxonomy of the various roles that cultural variance may play in nudges. First, biases that are exploited in nudging may interact with features that are culturally specific. Second, cultures may be more or less susceptible to certain biases. Third, cultures may resolve conflicting biases in different ways. And finally, nudge may be enlisted for different aims in different cultures.     

Is there "feedback" during visual imagery? Evidence from a specificity of practice paradigm.

The specificity of practice hypothesis predicts the development of a sensorimotor representation specific to the afferent feedback available during skill acquisition (Proteau, 1992; Proteau, Marteniuk, Girouard, & Dugas, 1987). In the present investigation, we used the specificity of practice hypothesis to test whether skill acquisition through visual imagery would lead to the development of a sensory-specific movement representation similar to one resulting from actual practice. To accomplish this objective, participants practiced walking a 12-m linear path in one of three practice conditions, full-vision (FV), no-vision (NV), or visual imagery (VI), for either 10 or 100 trials. Knowledge of spatial and/or temporal results (KR) was provided to participants following each trial during this phase. Following acquisition, participants completed 10 NV trials without KR. An analysis of root-mean-squared-error (RMSE) indicated NV participants were more accurate than both FV and VI participants in the transfer condition. We believe the equivalence in transfer RMSE between FV and VI suggests that there are similarities between the movement representations attained by FV and VI practice.     

Effects of Perceived Organizational Support on Objective and Subjective Career Success via Need Satisfaction: A Study Among French Psychologists

The authors examined potential links between perceived organizational support (POS) and objective and subjective career success through the satisfaction of the 3 basic psychological needs (BPNs) posited in self‐determination theory. The inclusion of BPN satisfaction as a mediator provides an interesting route, suggesting it is a condition for POS to lead to career success. The authors submitted an online questionnaire to 379 French counseling psychologists and examined the responses using a cross‐sectional design with only 1 measurement. The results indicated the indirect effects of POS on objective career success via the satisfaction of the 3 BPNs and on subjective career success via satisfaction of the needs for autonomy and competence.