Background: The literature on the effects of nocebo on pain is sparse. The present experimental study investigated whether suggestions of nocebo hyperalgesia modified the startle response and whether increased startle contributed to the nocebo hyperalgesic effect. Methods: A design with four groups was employed; the participants were randomized into either a placebo group, a natural history group, ...

When a prolonged observation of groups of rats in a seminatural environment is used as testing procedure, different behavioral patterns are shown compared with what observed in a pair housed in a small cage. Males and females copulate simultaneously, they show a promiscuously and random copulatory pattern. Females remain completely receptive from the first lordosis displayed in the period of behavioral ...

<b>Objectives:</b> We outline a two-stage heuristic account for the pathogenesis of the positive symptoms of psychosis. <b>Methods:</b> A narrative review on the empirical evidence of the liberal acceptance (LA) account of positive symptoms is presented. <b>Hypothesis:</b> At the heart of our theory is the idea that psychosis is characterized by a lowered decision threshold, which results in ...

<p><i>Background:</i> The purpose of this study was to assess the efficacy of transcranial direct current stimulation (tDCS) on verbal memory function in patients with Alzheimer’s disease. <p><i>Methods:</i> We conducted a randomized, placebo-controlled clinical trial in which tDCS was applied in six 30-minute sessions for 10 days. tDCS was delivered to the left temporal cortex with 2-mA intensity. ...

The role of the default-mode network (DMN) in the emergence of mind wandering and task-unrelated thought has been studied extensively. In parallel work, mind wandering has been associated with neuromodulation via the locus coeruleus (LC) norepinephrine (LC-NE) system. Here we propose a neural model that links the two systems in an integrative framework. The model attempts to explain how dynamic ...

This discussant’s response to the collected articles on the consumer behavior of sharing draws on a 1983–99 record of research on the psychology of ownership and property. The major recommendations here are: (1) that sharing be defined as the simultaneous or sequential use of an object (e.g., car), a space (e.g., living room), or an intangible (e.g., identity) by more than one individual; (2) that ...

Procrastination is a common problem, but defining and measuring it has been subject to some debate. This paper summarizes results from students and employees (N = 2893) in Finland, Germany, Italy, Norway, Poland, and Sweden using the Pure Procrastination Scale (PPS) and the Irrational Procrastination Scale (IPS; Steel, 2010), both assumed to measure unidimensional and closely related constructs. ...

<b>Background:</b> Anorexia nervosa (AN) is a serious eating disorder characterized by selfstarvation, extreme weight loss and alterations in brain structure. Structural magnetic resonance imaging (sMRI) studies have documented brain volume reductions in acute AN, but it is unclear whether they are 1) regionally-specific or 2) reversible following weight restoration. Here, we measured cortical ...

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