Using a multi‐feature paradigm to measure mismatch responses to minimal sound contrasts in children with cochlear implants and hearing aids

Our aim was to explore whether a multi‐feature paradigm (Optimum‐1) for eliciting mismatch negativity (MMN) would objectively capture difficulties in perceiving small sound contrasts in children with hearing impairment (HI) listening through their hearing aids (HAs) and/or cochlear implants (CIs). Children aged 5–7 years with HAs, CIs and children with normal hearing (NH) were tested in a free‐field setting using a multi‐feature paradigm with deviations in pitch, intensity, gap, duration, and location. There were significant mismatch responses across all subjects that were positive (p‐MMR) for the gap and pitch deviants (F(1,43) = 5.17, p = 0.028 and F(1,43) = 6.56, p = 0.014, respectively) and negative (MMN) for the duration deviant (F(1,43) = 4.74, p = 0.035). Only the intensity deviant showed a significant group interaction with MMN in the HA group and p‐MMR in the CI group (F(2,43) = 3.40, p = 0.043). The p‐MMR correlated negatively with age, with the strongest correlation in the NH subjects. In the CI group, the late discriminative negativity (LDN) was replaced by a late positivity with a significant group interaction for the location deviant. Children with severe HI can be assessed through their hearing device with a fast multi‐feature paradigm. For further studies a multi‐feature paradigm including more complex speech sounds may better capture variation in auditory processing in these children.     

Drawn towards what others seem to like: Implicit preference for objects and people looked at with a duchenne smile

People tend to like objects that are looked at by others, especially if the person looking at the object expresses a positive emotion. But not all positive emotions are equal. We investigated the effect of third party gazing while expressing subtle positive emotions on perceivers’ subsequent preferences and evaluations of objects and people. In two studies participants saw faces looking at target objects and people either with a Duchenne, a non-Duchenne smile, or a neural expression. Participants first indicated gaze direction and later reported intuitive target preference and evaluated the targets. Results show a preference for target stimuli that were smiled at with a Duchenne smile as opposed to when they were looked at with a non-Duchenne smile or a neutral expression. More explicit evaluations of the target stimuli were not affected by the type of facial expression.     

Who Counts as Human? Antecedents to Androcentric Behavior

People view men as typically human, although some conditions may make this more or less likely. Language has been implicated as one factor, with masculine generic language (e.g., he used neutrally) leading to more androcentrism relative to its alternatives. However, the influence of two types of alternatives (e.g., they vs. he or she) remains unclear. The present study asked 297 male and female online participants from the United States to select typical representations of humanity from a set of White and Black male and female faces. The wording for the concept humanity was manipulated to be either a typical member of mankind, a typical human, or a typical man or woman (or woman or man). Overall, participants selected more White targets. Participants also selected more male targets, but the degree to which that was the case was affected by wording and participant’s gender. Participants, particularly male participants, in the mankind and human wording conditions were more likely to select a male target as representative, whereas in the man or woman condition, participants’ choices did not differ from chance. Thus, androcentric thinking may be more mutable than previously surmised, varying by participants’ gender and by context.     

Infelicitous inter-ritual hospitality

This article focuses on inter-ritual hospitality, ‘where the reciprocal roles of host and guest set the parameters for interaction’ (60). This type of hospitality has the potential to enhance the dialogue between religions; indeed, one may ask whether there can be a greater token of mutual respect and appreciation than that of inviting another to share one’s rituals. In this article, however, I am not interested primarily in the success stories of inter-ritual hospitality that have brought growth and enrichment for the parties involved; rather, I will focus my attention on its infelicitous counterparts. The failure of inter-ritual hospitality is a subject that has been explored very little in interreligious studies, and there is little (ethnographic) documentation on this subject. One could say that inter-ritual failure is virgin territory among interreligious scholars. I will begin to explore some of the issues at stake and examine where inter-ritual hospitality can go wrong. In doing so, I continue and expand the research done by ritual scholars who have focused their attention on infelicitous ritual performances conducted mainly in ‘monoreligious’ settings.     

Dismissing-avoidant pattern of attachment and mimicry reactions at different levels of information processing

Individuals with a dismissing-avoidant pattern of attachment are assumed to repress anxiety-related signals, a disposition hypothesized to interfere with facial mimicry and emotional contagion. Further, they are assumed to have one internal working model associated with anxiety, operating out of awareness at early, automatic stages of information processing, and another positive model operating at later, cognitively controlled stages of processing. The main aim of the present investigation was to compare facial mimicry in dismissing-avoidant and non-dismissing subjects at different levels of information processing. Pictures of happy and angry faces were exposed to 61 subjects at three different exposure times (17, 56, and 2,350 ms) in order to elicit facial muscle reactions, first at automatic levels and then at a more controlled levels. Corrugator activity ("frowning muscles") represented negative emotions and zygomaticus activity ("smiling muscles") positive emotions. The dismissing-avoidant subjects scored significantly lower on emotional empathy than the non-dismissing subjects. At the automatic level the dismissing-avoidant subjects showed "normal" corrugator responses (negative emotions) upon exposure to angry faces. At the cognitively controlled level of processing (2,350 ms) a significant interaction effect was shown between Faces x Muscles x Attachment pattern. The dismissing-avoidant subjects showed no corrugator response and an increased zygomaticus response ("smiling reaction") to the angry face, whereas the non-dismissing subjects reacted with a significant mimicking reaction. The dismissing-avoidant subjects' tendency to "smiling" in response to the angry face at the controlled level (2,350 ms) may be interpreted as a repression of their earlier, automatically evoked (56 ms) negative emotional reaction.     

Change in perceptual form attenuates the use of the fluency heuristic in recognition

Four experiments (total N=295) were conducted to determine whether within-modality changes in perceptual form between the study and the test phases of an experiment would moderate the role of the fluency heuristic in recognition memory. Experiment 1 showed that a change from pictures to words reduced the role of fluency in recognition memory. In Experiment 2, the same result was found using counterfeit study lists that supposedly consisted of pictures or words. Experiments 3 and 4 showed that changes in the font used to present the study and test words also attenuated the contribution of fluency to the recognition decision when font change was manipulated between subjects, but not within subjects. Results suggest that the fluency heuristic is subject to metacognitive control, since participants' attributions of perceptual fluency depend on the perceived usefulness of fluency as a cue to recognition.     

Impact forces cannot explain the one-target advantage in rapid aimed hand movements

A pointing movement is executed faster when a subject is allowed to stop at the first target than when the subject has to proceed to a second target ("one-target advantage"). Our hypothesis was that this is because the impact at the target helps to stop the finger when the finger does not have to proceed to a second target. This hypothesis would predict that the horizontal force at contact with the first target should be larger when there is only one-target. Modelling smooth movements with larger forces at contact using a minimum-jerk model, shows that the peak velocity is slightly higher and it occurs later during the movement when there is only one target. Although the one-target advantage was present in our experiment, the horizontal force at contact in the one-target condition was not larger than in the two-target condition. The time of the maximum velocity did not differ, but the maximum velocity was higher in the one-target condition. Thus our hypothesis is rejected, favouring a non-mechanical explanation of the one-target advantage.     

Responsiveness to terrestrial optic flow in infancy: does locomotor experience play a role?

Human infants show a peak in postural compensation to optic flow at approximately nine months of age. The current experiment tested whether the magnitude of visual-postural coupling in 9-month-olds increases when terrestrial optic flow is added to a moving room. A secondary objective was to explore whether locomotor experience plays any role in enhancing responsiveness to the additional terrestrial information. Ninety-one infants (experienced creepers, nascent creepers, and prelocomotors) were exposed to two conditions of optic flow: global optic flow (G) and global optic flow minus terrestrial optic flow (G-T). The additional terrestrial optic flow led to significantly higher visual-postural coupling. Consistent with previous findings, locomotor experience had no effect on responsiveness to the G-T condition, though there was weak evidence that the nascent creepers were more strongly influenced by the difference between flow conditions than the other infants. Unexpectedly, the prelocomotor females showed significantly lower visual-postural coupling than the prelocomotor males. These findings support the notion that the ground provides an important source of information for the control of posture and locomotion. The findings also suggest that locomotor experience most likely helps to functionalize smaller (partial), rather than larger (global), optic flow fields for postural control.