Absolute Time: The Limit of Kant's Idealism

I examine here if Kant can explain our knowledge of duration by showing that time has metric structure. To do so, I spell out two possible solutions: time's metric could be intrinsic or extrinsic. I argue that Kant's resources are too weak to secure any intrinsic, transcendentally‐based temporal metrics; but he can supply an extrinsic metric, based in a metaphysical fact about matter. I conclude that Transcendental Idealism is incomplete: it cannot account for the durative aspects of experience—or it can do so only with help from a non‐trivial metaphysics of material substance.     

Philosophy and the care of the self: A literature survey

This article reviews a number of recent books and practices that address a renewed interest in the role that philosophy might play in the living of a rich and fulfilling life. The review looks at books addressed to the general public as well as books which discuss such classical and Hellenistic philosophers as took their task to be helping people achieve happiness in life. It then turns to contemporary studies of the self and of wisdom and turns finally to some newly emerging philosophical practices such as philosophical counselling and philosophical discussion groups of various kinds in order to explore whether philosophy can still be a source of consolation or guidance in contemporary life.     

Adult attachment and sexual behavior

The relations between adult attachment processes and sexuality were examined in a community sample of 792 young adults (327 men and 465 women) from the Niagara region of Canada. Participants completed questionnaires that included Simpson’s (1990) measure of adult attachment, self‐reported physical attractiveness, erotophilia, and a variety of sexual behavior measures (e.g., number of sexual partners, age of first sexual experience, frequency of sexual behaviors in the past year, whether an affair had occurred in the past year, and consistent condom usage). The sexuality measures were factor analyzed to extract common factors. The results were modest, but a number of significant relationships between sexuality and attachment were observed. For example, people scoring higher on a secure attachment index perceived themselves as more physically attractive, whereas people scoring higher on an anxious attachment index perceived themselves as less physically attractive, had an early first intercourse (and more lifetime partners), more infidelity, and took more sexual precautions (e.g., condom usage). The results were generally stronger in women, with most of the attachment/sexuality associations in the full sample being driven by the results in women. Implications for understanding sexual variability, including high‐risk sexual behavior, are discussed.     

Movement parameters that distinguish between voluntary movements and levodopa-induced dyskinesia in Parkinson's disease

It is well known that long-term use of levodopa by patients with Parkinson's disease causes dyskinesia. Several methods have been proposed for the automatic, unsupervised detection and classification of levodopa induced dyskinesia. Recently, we have demonstrated that neural networks are highly successful to detect dyskinesia and to distinguish dyskinesia from voluntary movements. The aim of this study was to use the trained neural networks to extract parameters, which are important to distinguish between dyskinesia and voluntary movements.Thirteen patients were continuously monitored in a home-like situation performing in about 35 daily life tasks for a period of approximately 2.5 h. Behavior of the patients was measured using triaxial accelerometers, which were placed at six different positions of the body. A neural network was trained to assess the severity of dyskinesia. The neural network was able to assess the severity of dyskinesia and could distinguish dyskinesia from voluntary movements in daily life. For the trunk and the leg, the important parameters appeared to be the percentage of time that the trunk or leg was moving and the standard deviation of the segment velocity of the less dyskinetic leg. For the arm, the combination of the percentage of time, that the wrist was moving, and the percentage of time, that a patient was sitting, explained the largest part of the variance of the output. Dyskinesia differs from voluntary movements in the fact that dyskinetic movements tend to have lower frequencies than voluntary movements and in the fact that movements of different body segments are not well coordinated in dyskinesia.     

Catching oriented objects

We have investigated how participants match the orientation of a line, which moves on a vertical screen towards the subject. On its path to the participant, the line could disappear at several positions. Participants were instructed to put a bar on a predefined interception point on the screen, such that the bar touched the screen with the same orientation as the moving line at the very moment when the line passed through the interception point or (in case of line disappearance) when the hidden line would pass through the interception point (like in catching). Participants made significant errors for oblique orientations, but not for vertical and horizontal orientations of the moving line. These errors were small or absent when the moving line was visible all the way along its path on the screen. However, these errors became larger when the line disappeared farther away from the interception point. In the second experiment we tested whether these errors could be related to errors in visual perception of line orientation. The results demonstrate that errors in matching of the bar do not correspond to the last perceived orientation of the line, but rather to the perceived orientation of the moving line near the beginning of the movement path. This corresponds to earlier observations that participants shortly track a moving target and then make a saccadic eye movement to the interception point.     

Acoustic behavior associated with cooperative task success in bottlenose dolphins (<Emphasis Type="Italic">Tursiops truncatus</Emphasis>)

Although many species have proven capable of cooperating to achieve common goals, the role of communication in cooperation has received relatively little attention. Analysis of communication between partners is vital in determining whether actions are truly cooperative rather than serendipitous or learned via trial and error (Chalmeau and Gallo in Behav Process 35:101–111, 1996a. doi: 10.1016/0376-6357(95)00049-6, Primates 37:39–47, 1996b. doi: 10.1007/BF02382918). Wild cetaceans often produce sounds during cooperative foraging, playing, and mating, but the role of these sounds in cooperative events is largely unknown. Here, we investigated acoustic communication between two male bottlenose dolphins while they cooperatively opened a container (Kuczaj et al. in Anim Cogn 18:543–550, 2015b. doi: 10.1007/s10071-014-0822-4). Analyses of whistles, burst pulses, and bi-phonations that occurred during four contexts (i.e., no container, no animals interacting with container, one animal interacting with container, and two animals interacting with container) revealed that overall sound production rate significantly increased during container interactions. Sound production rates were also significantly higher during cooperative successes than solo successes, suggesting that the coordination of efforts rather than the apparatus itself was responsible for the phonation increase. The most common sound type during cooperative successes was burst pulse signals, similar to past recordings of cooperative events in bottlenose dolphins (Bastian in Animal sonar systems. Laboratoire de Physiologie Acoustique, Jouy-en Josas, pp 803–873, 1967; Connor and Smolker 1996).     

A randomised placebo-controlled trial of a self-help Internet-based intervention for test anxiety

Test anxiety is widespread and associated with poor performance in academic examinations. The Internet, not well-proven for the treatment of anxiety, should be able to deliver highly accessible Cognitive Behavior Therapy (CBT). This study sought to test the hypothesis that CBT, available on the Internet, could reduce test anxiety. Ninety university students were randomly allocated to CBT or a control program, both on the Internet. Before and after treatment, the participants completed the Test Anxiety Inventory (TAI), an Anxiety Hierarchy Questionnaire (AHQ), the Exam Problem-Solving Inventory (EPSI), the General Self-Efficacy Scale (GSES) and the Heim reasoning tests (AH) as a measure of test performance. Of the CBT and control groups 28% and 35%, respectively, withdrew. According to the TAI, 53% of the CBT group showed a reliable and clinically significant improvement with treatment but only 29% of the control group exhibited such a change. On the AHQ, 67% of the CBT group and 36% of the control group showed a clinically significant improvement, more than two standard deviations above the mean of the baseline, a change in favour of CBT. Both groups improved on the GSES, in state anxiety during exams retrospectively assessed, and on the AH tests. The improvement on the AH tests was probably a practice effect and not a reflection of a change in capacity for academic testing. This study thus supports use of CBT on the Internet for the treatment of test anxiety.     

A treatment trial of an information package to help patients accept new dentures

Intolerance of dentures can be very distressing and difficult to treat. Therefore, 44 patients, having had partial or total dental clearance, completed the Brief Symptom (Psychiatric) Inventory, the Hospital Anxiety and Depression Scale and the Satisfaction with Life Scale. Allocated alternately, each patient had treatment as usual or watched a video containing information, recapitulated in a leaflet, based on the Self Regulatory Model of health beliefs explaining the experiences of wearing dentures and how to tolerate them. They were then fitted with dentures. Two and six weeks later, although both groups expressed favourable expectations of their dentures, the control group deteriorated continually on all measures, correlated with a decline in self-reported dental functioning. The video group improved on all measures except Satisfaction with Life. Therefore, our study is unique in showing that appropriate management of patients can arrest (1) clinically significant distress which can be occasioned by the replacement of teeth by dentures and (2) the development of complaints which may be seen as spurious. Experimental procedures are suggested to determine the influences which have brought this about in our study.