Psychological effects of deep-breathing: the impact of expectancy-priming

Outcome expectancy could mediate the psychological effects of exercise-related interventions, which implies that part of the psychological benefits of physical activity could be ascribed to placebo effects. In this framed field-experiment, 89 healthy participants were studied in three groups, (1) breathing-primed (deep-breathing with an exercise-related expectancy), (2) breathing-unprimed (deep-breathing with no exercise-related expectancy), and (3) control (no intervention). Deep-breathing lasted for three minutes. Before and after deep-breathing, or sitting quietly in the control group, participants completed two questionnaires assessing their positive- and negative affect (NA) and subjective well-being (WB). In contrast to the control group, both the breathing-primed and breathing-unprimed groups showed decreased NA and increased subjective WB. The breathing-primed group reported larger changes in WB than the breathing-unprimed group, in addition to also exhibiting significant increases in positive affect. These findings support the hypothesis of the work that expectations mediate the psychological effects of deep-breathing beyond the intervention’s specific effects. Therefore, future research should control for expectations related to an intervention when gauging psychological changes.     

Direct evaluative conditioning in brand placement: The impact of scene valence and prominence on brand placement repetition effects

Whereas previous studies investigated the affect transfer from one specific affective stimulus of the brand placement context (such as an artist or the genre) to the brand, this research study investigates the effect of the valence of various scenes in which the brand is repeatedly placed on brand attitude. Direct evaluative conditioning theory suggests that pairing a brand repeatedly with various positive (negative) stimuli positively (negatively) affects brand attitude. The results of 2 experimental studies indicate that when a brand is repeatedly and prominently placed in different affective scenes of the same valence (a series of either positive or negative scenes), the affect aroused by those scenes influences explicit and implicit brand attitudes. In addition, whereas previous research found negative effects of brand prominence on brand evaluations, this study found that prominence positively moderates the affect transfer from the valence of various scenes on brand attitude. This implies that by placing the brand in various positive scenes, prominent brand placements can have a positive effect on recall and recognition and on brand attitude, which transcends the previously declared paradox of prominent placement.     

Validation of Dating Violence Questionnarie-R (DVQ-R)

Background/Objective

Despite the growing interest in the study of dating violence, relatively few psychometrically sound instruments are available to researchers. To provide an instrument to researchers and professionals to assess victimization in dating relationships, with adequate psychometric properties. Method: Participants were 6,138 adolescents drawn from the general population, 25% of which were university students. Participants responded to the original Dating Violence Questionnaire (DVQ). Results: Confirmatory analyses results provided evidence of a clear factorial structure that was invariant through sex groups. The DVQ-R measures with 20 items five dimensions of abuse in affective interpersonal relationships of adolescents and youth: Detachment, Humiliation, Coercion, Physical and Sexual violence. Internal consistency indexes were adequate for both each one of the five dimensions as well as for the general scale. Conclusions: The DVQ-R is an useful assessment to be applied in adolescents and youth. Implications for research and intervention are discussed in light of the results obtained.     

Reinforcement of vocalizations through contingent vocal imitation

Maternal vocal imitation of infant vocalizations is highly prevalent during face-to-face interactions of infants and their caregivers. Although maternal vocal imitation has been associated with later verbal development, its potentially reinforcing effect on infant vocalizations has not been explored experimentally. This study examined the reinforcing effect of maternal vocal imitation of infant vocalizations using a reversal probe BAB design. Eleven 3- to 8-month-old infants at high risk for developmental delays experienced contingent maternal vocal imitation during reinforcement conditions. Differential reinforcement of other behavior served as the control condition. The behavior of 10 infants showed evidence of a reinforcement effect. Results indicated that vocal imitations can serve to reinforce early infant vocalizations.     

A combination of Raspberry Pi and SoftEther VPN for controlling research devices via the Internet

Remote control over devices for experiments may increase the efficiency of operant research and expand the area where behavior can be studied. This article introduces a combination of Raspberry Pi^® (Pi) and SoftEther VPN^® that allows for such remote control via the Internet. The Pi is a small Linux computer with a great degree of flexibility for customization. Test results indicate that a Pi‐based interface meets the requirement for conducting operant research. SoftEther VPN^® allows for establishing an extensive private network on the Internet using a single private Wi‐Fi router. Step‐by‐step instructions are provided in the present article for setting up the Pi along with SoftEther VPN^®. Their potential for improving the way of conducting research is discussed.     

Stimulus competition in pre/post and online ratings in an evaluative learning design

Evaluative learning is said to differ from Pavlovian associative learning in that it reflects stimulus contiguity, not contingency. Thus, evaluative learning should not be subject to stimulus competition, a proposal tested in the current experiments. Participants were presented in elemental and compound training phases with pictures of shapes as CSs. Each shape/pair of shapes was followed by a picture of a happy or an angry face as the US. In Experiments 1 and 2, evaluative ratings were collected before and after the experiment, and, in Experiment 3, participants provided evaluations online. Stimulus competition was evident in all experiments confirming that evaluative learning is sensitive to stimulus contingencies.     

Looking out for danger: An attentional bias towards spatially predictable threatening stimuli

Attentional bias to threat is well established, however, the influence of spatial predictability on this attentional bias has never been investigated. Here we investigated how threat affects attentional capture and disengagement when its spatial location is predictable. Using a visual search paradigm, participants were required to identify a target inside one of a variable number of colored circles. One color (Conditioned Stimulus, CS+) was fear-conditioned using an electrocutaneous stimulus at tolerance level. In the experimental group the CS+ was made spatially predictable (occurred more often at one location in the visual display), while this was not the case in the control group. Results showed no complete automatic capture of attention by the CS+, but the experimental group did show more prioritization of the CS+ and less difficulty to disengage from the CS+ than the control group. Of further importance was the finding that the experimental group also attended to the location that was predictive of the CS+, even when no CS+ was presented. Findings are discussed in terms the effects of predictability on anxiety.     

Using the Implicit Association Test does not rule out an impact of conscious propositional knowledge on evaluative conditioning

Implicit measures such as the Implicit Association Test (IAT) have recently become popular as tools in research on evaluative conditioning. The reason is that these measures are thought to be impervious to changes in valence that are due to conscious propositional knowledge about the relation between the conditioned stimulus (CS) and the unconditioned stimulus (US). I present data that raise doubts about the validity of this assumption. In two experiments, attitudes towards CSs as measured by the IAT were in line with instructed CS-US contingencies even though the CSs and USs were never actually paired. The results therefore suggest that IAT effects can be biassed by conscious propositional knowledge.