Parkinson's disease protects against smoking?

Our aim was to estimate the pooled risk of current and former smoking for Parkinson's disease (PD). We have reviewed all observational studies that evaluated the association between PD risk and smoking habit. Twenty six studies were identified: 21 case-control, 4 cohort and 1 cross-sectional. The cross-sectional study did not compare former with never smokers. These studies were carried out between 1968 and 2000. There was an obvious protective effect of current smoking in the pooled estimate [risk estimate 0.37 (95% confidence interval 0.33 to 0.41)]. Former versus never smokers had pooled risk estimate of 0.84 (95% confidence interval 0.76 to 0.92). Current and former smoking do not, therefore, exert the same protective effect against PD so that it is unnecessary to postulate a biological mechanism through which smoking protects against PD. The results show that the reverse direction of causation is a more probable explanation, i.e. movement disorders of PD protect against smoking. Another explanation is that failure to develop strong smoking habits in early adult life might be a prodromal symptom of the disease and could perhaps be its first clinical manifestation.     

The Israel press council: Review and suggestions for improvement

The aim of this essay is to review the work of the Israel Press Council. The essay considers the history of the Press Council, analysing the way it has developed, its work, and how it reached its current status. It is argued that the existing situation is far from satisfactory, and that the media should advance more elaborate mechanisms of self-control, empowering the Press Council with greater authority and equipping it with substantive ability to sanction. R. Cohen-Almagor, D. Phil. (Oxon., 1991); Senior Lecturer, Department of Communication, University of Haifa; Member, Israel Press Council (1997– ); Visiting Professor and the Fulbright-Yitzhak Rabin scholar for this year, UCLA School of Law (1999–2000); author of The Boundaries of Liberty and Tolerance (University Press of Florida, Gainesville, FL, 1994), Speech, Media and Ethics (Macmillan, London, 2000) and editor of Basic Issues in Israeli Democracy (Sifriat Poalim, Tel Aviv, Hebrew, 1999), Liberal Democracy and the Limits of Tolerance: Essays in Honor and Memory of Yitzhak Rabin (University of Michigan Press, Ann Arbor, MI, 2000), Challenges to Democracy: Essays in Honour and Memory of Isaiah Berlin (Ashgate, London, 2000), and Medical Ethics at the Dawn of the 21st Century (New York Academy of Sciences, New York, 2000). Dr. Cohen-Almagor is now completing a book on The Right to Die in Dignity: An Argument in Ethics, Medicine, and Law.     

Acoustic startle in maltreated children

We investigated the eyeblink component of acoustic startle reactions in maltreated children. Previous research indicates that acoustic startle is enhanced in adult males with posttraumatic stress disorders (PTSD) whereas findings on women with PTSD have been inconsistent. In accord with the only previous report for children with PTSD, we found that maltreated boys, particularly those who had been physically abused, responded to increases in startle probe loudness with smaller increments in amplitude of startle eyeblink and smaller reductions in blink latency than did comparison boys. Results for girls were inconsistent: younger maltreated girls had smaller startle amplitude and slower onset latency than controls, whereas older maltreated girls exhibited the opposite pattern.     

Gender congruency effects in picture naming

The analysis of speech error corpora in various gender-marked languages has shown that noun substitutions tend to preserve grammatical gender. This result has been taken as an indication that grammatical gender could play a constraining role during the process of lexical selection. To gain insights on the status of grammatical gender in the speech production system, we discuss this hypothesis and we report three picture naming experiments. We attempted to observe gender-marked context effects in the course of error-free speech production. Participants named pictures shortly after processing a prime that was or was not gender marked and that was or was not congruent with the name of the picture. A clear congruency effect was observed, involving both facilitation in the gender congruent conditions and inhibition in gender incongruent conditions. Different interpretations of this effect and of previously reported gender context effects are discussed in the context of current models of speech production.     

Arrows don’t look at you: Qualitatively different attentional mechanisms triggered by gaze and arrows

Eye gaze conveys rich information concerning the states of mind of others, playing a critical role in social interactions, signaling internal states, and guiding others’ attention. On the basis of its social significance, some researchers have proposed that eye gaze may represent a unique attentional stimulus. However, contrary to this notion, the majority of the literature has shown indistinguishable attentional effects when eye gaze and arrows have been used as cues. Taking a different approach, in this study we aimed at finding qualitative attentional differences between gazes and arrows when they were used as targets instead of as cues. We used a spatial Stroop task, in which participants were required to identify the direction of eyes or arrows presented to the left or the right of a fixation point. The results showed that the two types of stimuli led to opposite spatial interference effects, with arrows producing faster reaction times when the stimulus direction was congruent with the stimulus position (a typical spatial Stroop effect), and eye gaze producing faster reaction times when it was incongruent (a “reversed” spatial Stroop effect). This reversed Stroop is interpreted as an eye-contact effect, therefore revealing the unique nature of eyes as special social-attention stimuli.     

Behavioral evidence for a differential modulation of semantic processing and lexical production by aging: a full linear mixed-effects modeling approach

The effect of normal aging on lexical production and semantic processing was evaluated in 72 healthy participants. Four tasks were used, picture naming (PN), picture categorization (PC), numerical judgment (NJ), and color judgment (CJ). The dependence of reaction time (RT) and correct responses with age was accounted by mixed-effects models. Participants underwent neuropsychological testing for verbal, executive, and memory functions. The RTs increase significantly with age for all tasks. After parceling out the non-specific cognitive decline, as reflected by the NJ task, the RT for the PN task decreases with age. Behavioral data were interpreted in relation with neuropsychological scores. Our results suggest that (a) naming becomes more automatic and semantic processing slightly more difficult with age, and (b) a non-specific general slowdown of cognitive processing occurs with age. Lexical production remained unaltered, based on compensatory automatic processes. This study also suggests a possible slowdown of semantic processing, even in normal aging.     

Alterity and the call of conscience: Heidegger,Levinas, and Ricoeur

Since the publication and reception of Levinas’s critique of Heidegger, it has become standard practice among some authors to argue that Heidegger’s thinking of being, both early and late, is an insistent meditation on the alterity of the self in the call of conscience and the alterity of being in relation to beings, and that this thought is consequently already ‘ethical’. This line of argument has been recently pursued by Dastur, Raffoul, and Ricoeur. None of them contests that there is a difference between the alterity of the self and the alterity of the other. But they argue that the experience of the first is the condition of possibility of gaining access to the second. There are several reasons why I have failed to be convinced by this argument. In this paper, I spell out those reasons and argue that Ricoeur’s attempt to carve out a path between Heidegger and Levinas remains unsuccessful.     

Psychologically Controlling Parenting and Personality Vulnerability to Depression: A Study in Peruvian Late Adolescents

This study examined associations between two domain-specific manifestations of perceived psychologically controlling parenting (i.e., dependency oriented and achievement-oriented), dimensions of personality vulnerability to depression (i.e., dependency and self-criticism), and depressive symptoms in Peruvian late adolescents (N = 292, 60 % female). Structural equation modeling showed that perceived dependency-oriented psychological control was related specifically to dependency and that perceived achievement-oriented psychological control was related specifically to self-criticism. Both dimensions of personality vulnerability played an intervening role in associations between the domains of psychologically controlling parenting and depressive symptoms. In addition, dependency-oriented psychological control interacted with perceived parental responsiveness in the prediction of depressive symptoms, such that responsiveness exacerbated effects of psychological control on depressive symptoms. Results were similar across maternal and paternal ratings of parenting. Findings are interpreted in light of the debate about the cross cultural generalization of the effects of psychologically controlling parenting.     

Cooperative responding in rats maintained by fixed‐ and variable‐ratio schedules

The present study investigated the effects of fixed‐ratio (FR) and variable‐ratio (VR) reinforcement schedules on patterns of cooperative responding in pairs of rats. Experiment 1 arranged FR 1, FR 10, and VR 10 schedules to establish cooperative responding (water delivery depended on the joint responding of two rats). Cooperative response rates and proportions were higher under intermittent schedules than under continuous reinforcement. The FR 10 schedule generated a break‐and‐run pattern, whereas the VR 10 schedule generated a relatively high and constant rate pattern. Experiment 2 evaluated the effects of parametric manipulations of FR and VR schedules on cooperative responding. Rates and proportions of cooperative responding generally increased between ratio sizes of 1 and 5 but showed no consistent trend as the ratio increased from 5 to 10. Experiment 3 contrasted cooperative responding between an FR6 schedule and a yoked control schedule. Coordinated behavior occurred at a higher rate under the former schedule. The present study showed that external consequences and the schedules under which the delivery of these consequences are based, select patterns of coordinated behavior.