Tracing response parameter preparation strategies using transition times

Latencies were measured using a modified four-choice reaction time (4-CRT) test procedure; the responses comprised forward and backward displacements of left- and right-hand levers. Two stimuli were presented, separated by an interval (ISI) of 25, 165, 415 or 815 msec. S1 designated which response should be readied; and on 62% of occasions, S2 indicated that the prepared response should be executed immediately (same trials). During transition trials, S2 specified which one of the alternative responses should be substituted. Same conditions produced significantly shorter reaction times. Transition latencies varied depending on the modification required: changing direction proved easier than changing either hand or hand and direction. This is compatible with a response coding strategy in which limb is designated before direction. Latencies and exchange function analyses that preparations were discontinued after response selection; even at the longest ISI, there was no convincing evidence of preparatory motor programming.     

Embarrassing age spots or just plain ugly? Physical attractiveness stereotyping as an instrument of sexism on american television commercials

Frequencies of attractiveness-based messages were examined on 4,294 network television commercials. As expected, attractiveness statements appeared to be associated more with food and drink and personal care ads, and with female performers and with male voice-overs. Implications of an association of women and attractiveness on television are explored.An earlier version of this paper was presented at the annual meeting of the Southeastern Psychological Association, Atlanta, March 1983.     

Perspective taking in children's narratives about jealousy

This study explored relationships between perspective‐taking, emotion understanding, and children's narrative abilities. Younger (23 5‐/6‐year‐olds) and older (24 7‐/8‐year‐olds) children generated fictional narratives, using a wordless picture book, about a frog experiencing jealousy. Children's emotion understanding was assessed through a standardized test of emotion comprehension and their ability to convey the jealousy theme of the story. Perspective‐taking ability was assessed with respect to children's use of narrative evaluation (i.e., narrative coherence, mental state language, supplementary evaluative speech, use of subjective language, and placement of emotion expression). Older children scored higher than younger children on emotion comprehension and on understanding the story's complex emotional theme, including the ability to identify a rival. They were more advanced in perspective‐taking abilities, and selectively used emotion expressions to highlight story episodes. Subjective perspective taking and narrative coherence were predictive of children's elaboration of the jealousy theme. Use of supplementary evaluative speech, in turn, was predictive of both subjective perspective taking and narrative coherence.     

Reduced activation of left orbitofrontal cortex precedes blocked vocalization: A magnetoencephalographic study

While stuttering is known to be characterized by anomalous brain activations during speech, very little data is available describing brain activations during stuttering. To our knowledge there are no reports describing brain activations that precede blocking. In this case report we present magnetoencephalographic data from a person who stutters who had significant instances of blocking whilst performing a vowel production task. This unique data set has allowed us to compare the brain activations leading up to a block with those leading up to successful production. Surprisingly, the results are very consistent with data comparing fluent production in stutterers to controls. We show here that preceding a block there is significantly less activation of the left orbitofrontal and inferiorfrontal cortices. Furthermore, there is significant extra activation in the right orbitofrontal and inferiorfrontal cortices, and the sensorimotor and auditory areas bilaterally. This data adds weight to the argument forwarded by Kell et al. (2009) that the best functional sign of optimal repair in stutterering is activation of the left BA 47/12 in the orbitofrontal cortex.Educational objectives: At the end of this activity the reader will be able to (a) identify brain regions associated with blocked vocalization, (b) discuss the functions of the orbitofrontal and inferior frontal cortices in regard to speech production and (c) describe the usefulness and limitations of magnetoencephalography (MEG) in stuttering research.     

Sensory curation: theorizing media use for sensory regulation and implications for family media conflict

ABSTRACT

Media sensory curation theory, introduced here, complements theories of informational, emotional, and relational media gratifications. Sensory curation theory conceptualizes media devices as tools people use to help maintain sensory regulation by simultaneously capturing and curbing sensory input within built and natural environments. This article explicates the theory and introduces the Child and Adult Media Sensory Curation Inventories (MediaSCIs), separate measures of child and adult media sensory behaviors and preferences. A survey of 789 parents and adult caregivers of children ages 3 to 14 revealed moderate to strong correlations between general sensory processing and media sensory curation, validating the MediaSCIs. Controlling usage time, child media sensory curation strongly predicted problematic child media use and moderately predicted adult–child media conflict, which was four times as frequent among adult–child pairs with high MediaSCI scores than with low MediaSCI scores.     

The clocks that time us are not the same: A theory of temporal diversity,task characteristics,and performance in teams

Temporal individual differences are an under-explored, but research-worthy form of diversity in teams. Although persistent differences in how members think about and value time can profoundly influence team performance, the compositional impact of time-based individual differences is regularly overlooked. Optimal or suboptimal team performance can result because the composition of time-based individual differences is matched or unmatched (respectively) to task demands. Therefore, we offer a detailed presentation of how the configuration of four time-based individual differences (time urgency, time perspective, polychronicity, and pacing style) interact with two task typologies (task type and task complexity) to specify when elevation (mean) and diversity (dispersion) of temporal differences is helpful or harmful to team performance.