Nocturnal homing in the tropical amblypygid Phrynus pseudoparvulus (Class Arachnida,Order Amblypygi)

Arthropods are renowned for their navigational capabilities, with numerous examples known from insects and crustaceans. Early studies of amblypygids (Class Arachnida, Order Amblypygi) also suggest complex nocturnal navigation, despite their apparent lack of visual adaptations to the low-light conditions of a tropical understory. In a series of two studies, we use the tropical amblypygid, Phrynus pseudoparvulus, to assess their nocturnal homing ability. Our first experiment displaced and tracked resident and nonresident individuals. Resident individuals, displaced up to 4.5 m from their home refuges and released onto their home tree, were more likely to return to their previously occupied refuge than were nonresident individuals that were collected from trees outside the study area and released at the same locations. In a follow-up study, we displaced amblypygids longer distances (6–8.7 m) from their home trees and tracked them by telemetry. These individuals returned to home trees, typically within 1–3 nights, often via indirect paths. Taken together, our results provide evidence that P. pseudoparvulus are able to navigate home, often taking indirect routes, and can do so through a mechanism other than path integration.     

Evaluating the Face Validity of the ICECAP-O Capabilities Measure: A “Think Aloud” Study with Hip and Knee Arthroplasty Patients

The ICECAP-O index of capabilities measure for older people is intended to be used in the evaluation of health and social care interventions. Focusing on quality of life, rather than health or other influences on quality of life. This study evaluated the face validity of the self-administered ICECAP-O capabilities measure for older people by investigating how participants interpret and respond to questions using the cognitive interviewing technique. Twenty patients with osteoarthritis of the knee or hip participated in a cognitive interview whilst completing the ICECAP-O capabilities measure. Cognitive interviews were conducted using the concurrent ‘think aloud’ design. All interviews were audio recorded and transcribed verbatim and analysed (i) using a standardised classification scheme to identify response problems and (ii) qualitatively thematically analysed to explore the nature of the problems that the participants experienced when completing the measure. Problems were identified in 7 % of participants’ responses. The majority of problems identified were comprehension problems. Thematic analysis highlighted the extent to which participants’ distinguished between functioning and capability. Cognitive interviewing was a valuable technique for pre-testing the face validity, acceptability and content validity of the ICECAP-O capabilities measure. Participants had minimal difficulties completing the ICECAP-O capabilities measure. Those difficulties identified have prompted suggestions for improving the measure.     

Private selves and shared meanings: Or forgive us our projections as we forgive those who project into us

Abstract

This paper explores the difficulty university counselling services experience in finding common purpose with their institutions at the present time. It draws on a review of the relevant literature and personal experience to argue that it is extremely difficult to sustain depressive-position functioning in the current organizational culture, which, the author suggests, is dominated by fears about survival. The paper examines some defensive strategies counsellors may use to protect themselves against prevailing anxieties and argues for the importance of recognizing and working with these.     

Impact of average household income and damage exposure on post‐earthquake distress and functioning: A community study following the February 2011 Christchurch earthquake

Post‐traumatic stress, depression and anxiety symptoms are common outcomes following earthquakes, and may persist for months and years. This study systematically examined the impact of neighbourhood damage exposure and average household income on psychological distress and functioning in 600 residents of Christchurch, New Zealand, 4–6 months after the fatal February, 2011 earthquake. Participants were from highly affected and relatively unaffected suburbs in low, medium and high average household income areas. The assessment battery included the Acute Stress Disorder Scale, the depression module of the Patient Health Questionnaire (PHQ‐9), and the Generalized Anxiety Disorder Scale (GAD‐7), along with single item measures of substance use, earthquake damage and impact, and disruptions in daily life and relationship functioning. Controlling for age, gender and social isolation, participants from low income areas were more likely to meet diagnostic cut‐offs for depression and anxiety, and have more severe anxiety symptoms. Higher probabilities of acute stress, depression and anxiety diagnoses were evident in affected versus unaffected areas, and those in affected areas had more severe acute stress, depression and anxiety symptoms. An interaction between income and earthquake effect was found for depression, with those from the low and medium income affected suburbs more depressed. Those from low income areas were more likely, post‐earthquake, to start psychiatric medication and increase smoking. There was a uniform increase in alcohol use across participants. Those from the low income affected suburb had greater general and relationship disruption post‐quake. Average household income and damage exposure made unique contributions to earthquake‐related distress and dysfunction.     

Separation—Individuation,Self-Concept,and Object Relations in Fraternal Twins,Identical Twins,and Singletons

Identical twins, fraternal twins, and singletons (n = 30 in each group) were compared on objective measures of separation–individuation, object relations, and self-esteem. No significant differences were found. The data did not support the popular notion that twins face special problems with respect to personality development or the idea that twins have more difficulty than others in establishing and maintaining close relationships. Twins and nontwins did not differ significantly with respect to marital status, number of years married, whether married before, number of previous marriages, number of years divorced, or living arrangements if single. The majority of twins had been raised in a way that encouraged at least some individual differences.     

Hong Kong’s Umbrella Movement and the promotion of deviance

ABSTRACT

As a social movement demanding universal suffrage, Hong Kong’s Umbrella Movement mobilized thousands of young protesters and fomented radical views stridently subversive of mainland China’s political interference. The social movement continues to promote further forms of deviance in the form of calling for independence. As the city and former British colony lacks the sovereignty of statehood and democracy, the movement’s non-conformity to law needs to be contextualized as a form of deviance. In contributing to the deviancy of social movements, we utilize data obtained from interviews with participants of the movement alongside those who opposed the protest to understand the East Asian cultural setting of the Umbrella Movement’s promotion of deviance.     

Word identification: Imageability, semantics, and the content-functor distinction

It has often been suggested that different special-purpose mechanisms underlie the processing of content words and function words. The received view is that processing differences in various tasks arise because of differences between these word classes in terms of their semantic/syntactic function, despite the fact that these tasks often involve word processing in the absence of any sentence context. It is also well known that the ease with which a word arouses a sensory impression is often a good predictor of word-processing performance, yet the literature largely ignores the fact that, typically, imageability and word class are confounded factors. A series of three experiments shows that in the context of a Stroop task, the typical content-function word difference can be obtained, but that this word class difference disappears completely when the items are matched on the dimension of imageability. It is suggested that the processing of decontextualized content and function words does not necessarily engage distinct special purpose processing mechanisms. Implications for understanding previously published work on word class effects in other paradigms are briefly noted.