A preliminary investigation of the construct of psychopathic personality (psychopathy) in chimpanzees (Pan troglodytes)

Although the construct of psychopathy has received considerable attention in humans, its relevance to other animals is largely unknown. We developed a measure of psychopathy for use in chimpanzees (Pan troglodytes), the Chimpanzee Psychopathy Measure (CPM), and asked 6 raters to complete this index on 34 chimpanzees. The CPM (a) demonstrated satisfactory interrater reliability and internal consistency; (b) exhibited marginally significant sex differences (males > females); (c) correlated positively with measures of extraversion, agreeableness, and observational ratings of agonism, sexual activity, daring behaviors, teasing, silent bluff displays, and temper tantrums, and negatively with observational ratings of generosity; and (d) demonstrated incremental validity above and beyond a measure of dominance. Although further validation of the CPM is needed, these findings suggest that the psychopathy construct may be relevant to chimpanzees.     

What makes people happy? Decoupling the experiential-material continuum

Extant literature suggests that consumers derive more happiness from experiences (e.g., vacations) than from material possessions (e.g., furniture). However, this literature typically pits material against experiential consumption, treating them as a single bipolar construct of their relative dominance: more material or more experiential. This focus on relative dominance leaves unanswered questions regarding how different levels of material and experiential qualities each contribute to happiness. Four preregistered studies (N = 3,288), using hundreds of product categories, measured levels of material and experiential qualities using two unipolar items. These studies investigate recalled, evoked, and anticipated happiness. Results show a more nuanced view of the experiential advantage that is critical for future research and consumer theory: material and experiential qualities both have positive relationships with happiness. Further, there is no inherent trade-off between experiential and material qualities: consumers can enjoy consumption that is high on both (e.g., swimming pools and home improvements).     

Detectable Neuropsychological Differences in Early Preclinical Alzheimer’s Disease: A Meta-Analysis

The development of methods for in vivo detection of cerebral beta amyloid retention and tau accumulation have been increasingly useful in characterizing preclinical Alzheimer’s disease (AD). While the association between these biomarkers and eventual AD has been demonstrated among cognitively intact older adults, the link between biomarkers and neurocognitive ability remains unclear. We conducted a meta-analysis to test the hypothesis that cognitively intact older adults would show statistically discernable differences in neuropsychological performance by amyloid status (amyloid negative = A-, amyloid positive = A+). We secondarily hypothesized a third group characterized by either CSF tau pathology or neurodegeneration, in addition to amyloidosis (A+/N+ or Stage 2), would show lower neuropsychology scores than the amyloid positive group (A+/N- or Stage 1) when compared to the amyloid negative group. Pubmed, PsychINFO, and other sources were searched for relevant articles, yielding 775 total sources. After review for inclusion/exclusion criteria, duplicates, and risk of bias, 61 studies were utilized in the final meta-analysis. Results showed A+ was associated with poorer performance in the domains of global cognitive function, memory, language, visuospatial ability, processing speed, and attention/working memory/executive functions when compared to A-. A+/N+ showed lower performances on memory measures when compared to A+/N- in secondary analyses based on a smaller subset of studies. Results support the notion that neuropsychological measures are sensitive to different stages of preclinical AD among cognitively intact older adults. Further research is needed to determine what constitutes meaningful differences in neuropsychological performance among cognitively intact older adults.     

Perceived Organizational Support as a Moderator of Emotional Labor/Outcomes Relationships

The current study investigates the interactive effects of perceptions of organizational support on 2 emotional labor outcomes: job satisfaction and job performance. A sample of 2 retail service firms ( n  = 338) supported the moderating effect of perceived organizational support (POS) on the emotional labor/outcomes relationships. POS attenuated the negative effects of the emotional labor/job satisfaction and emotional labor/performance relationships. Implications of these results, strengths and limitations of the current study, and directions for future research are discussed.     

What Happens When Therapists Feel Bored or Anxious? A Qualitative Study of Distracting Self-Awareness and Therapists' Management Strategies

Using a qualitative methodology, we investigated novice and experienced therapists' experiences of and strategies for managing distracting self-awareness. We found that novice therapists were most aware of anxiety and critical self-talk, whereas experienced therapists were most aware of boredom and outside distracters. In addition, although therapists tended to manage distracting self-awareness through self-coaching and refocusing on the client, novice therapists specifically mentioned managing problematic self-awareness through self-disclosure. In contrast, experienced therapists tended to manage problematic self-awareness by using thought stopping techniques. The results provide new avenues for examining therapists' in-session experiences and for investigating the effectiveness of different management strategies.     

Constructions as categories of language

What causes children to categorize distinct utterances they hear into a constructional generalization? That is, what makes subjects create a constructional category instead of treating each utterance as a distinct unrelated idiom? One simple factor that encourages the learning of abstract categories is shared concrete similarity. When instances share concrete attributes, learners are more likely to categorize them together, and moreover are more likely to attend to their abstract commonalities [Gentner, D., & Medina, J. (1998). Similarity and the development rules. Cognition, 66, 236-297; Markman, A.B., & Gentner D. (1993). Splitting the difference: A structural alignment view of similarity. Journal of Memory and Language, 32, 517-535]. This paper reports results that confirm the prediction that presentation of items with concrete shared similarity early in training enhances language learning in adults.     

Implicit theories about groups and stereotyping: the role of group entitativity

The consequences of holding an entity (i.e., the belief that a group's characteristics are fixed) or incremental (i.e., the belief that a group's characteristics are malleable) implicit theory about groups was examined for stereotyping and perceptions of group entitativity. Two studies showed that implicit theories about groups affect stereotyping by changing perceptions of group entitativity. Study 1 found that entity theorists were more likely to stereotype than incremental theorists and that perception of group entitativity significantly accounted for this relation. In Study 2, implicit theories of groups were manipulated via instruction set and entity theorists stereotyped more and perceived groups as more entitative than incremental theorists. Again, the effect of implicit theory was significantly, although partially, mediated by perceptions of group entitativity. The roles of implicit theories about groups and perceptions of group entitativity are discussed regarding stereotyping.     

Play it again: did this melody occur more frequently or was it heard more recently? The role of stimulus familiarity in episodic recognition of music

Episodic recognition of novel and familiar melodies was examined by asking participants to make judgments about the recency and frequency of presentation of melodies over the course of two days of testing. For novel melodies, recency judgments were poor and participants often confused the number of presentations of a melody with its day of presentation; melodies heard frequently were judged as have been heard more recently than they actually were. For familiar melodies, recency judgments were much more accurate and the number of presentations of a melody helped rather than hindered performance. Frequency judgments were generally more accurate than recency judgments and did not demonstrate the same interaction with musical familiarity. Overall, these findings suggest that (1) episodic recognition of novel melodies is based more on a generalized "feeling of familiarity" than on a specific episodic memory, (2) frequency information contributes more strongly to this generalized memory than recency information, and (3) the formation of an episodic memory for a melody depends either on the overall familiarity of the stimulus or the availability of a verbal label.     

The time of our lives: life span development of timing and event tracking

Life span developmental profiles were constructed for 305 participants (ages 4-95) for a battery of paced and unpaced perceptual-motor timing tasks that included synchronize-continue tapping at a wide range of target event rates. Two life span hypotheses, derived from an entrainment theory of timing and event tracking, were tested. A preferred period hypothesis predicted a monotonic slowing of a preferred rate (tempo) of event tracking across the life span. An entrainment region hypothesis predicted a quadratic profile in the range of event rates that produced effective timing across the life span; specifically, age-specific entrainment regions should be narrower in childhood and late adulthood than in midlife. Findings across tasks provide converging support for both hypotheses. Implications of these findings are discussed for understanding critical periods in development and age-related slowing of event timing.