Phylogenetic threats such as spiders evoke our deepest primitive fears. When close or looming, such threats engage evolutionarily conserved monitoring systems and defense reactions that promote self-preservation. With the use of a modified behavioral approach task within functional MRI, we show that, as a tarantula was placed closer to a subject's foot, increased experiences of fear coincided w...

It is known that unpleasant emotions can modulate the speed of involuntary movements, yet the effects of aversive stimulation on voluntary motor acts have not been systematically investigated. The effects of aversive stimulation on subsequent movement-related cortical activity were examined using a task invalving compatible and incompatible movements. Negative shifts in the timing of two motor ...

We investigated the relationship between movement and conveying emotion with moving images. We developed a software system for generating moving images in which movement is specified with moving effects consisting of a few elements. We prepared eight movements from the Vertex Noise moving effect, which consists of the three elements of speed, density, and strength, by giving each element differ...

UNLABELLED This study examined the degree to which measures of spontaneous and movement-evoked pain accounted for shared or unique variance in functional disability associated with whiplash injury. The study also addressed the role of fear of movement as a mediator or moderator of the relation between different indices of pain and functional disability. Measures of spontaneous pain, single-poin...

As rapid brain development occurs during the neonatal period, environmental manipulation during this period may have a significant impact on sleep and memory functions. Moreover, rapid eye movement (REM) sleep plays an important role in integrating new information with the previously stored emotional experience. Hence, the impact of early maternal separation and isolation stress (MS) during the...

background and aims. dental fear/anxiety as a barrier in accessing oral health care is poorly investigated in iranian children. the aims of this study were to evaluate the prevalence of dental fear and behavior management problems, as well as to examine the relationship between dental fear/anxiety and probable concomitant factors. materials and methods. mothers of 200 children aged 3-6 were par...

Bilateral amygdala lesions impair the ability to identify certain emotions, especially fear, from facial expressions, and neuroimaging studies have demonstrated differential amygdala activation as a function of the emotional expression of faces, even under conditions of subliminal presentation, and again especially for fear. Yet the amygdala's role in processing emotion from other classes of st...

OBJECTIVE AND DESIGN In a randomized controlled study, we investigated whether pain anticipation and fear-avoidance beliefs will lead to behavioral avoidance. PATIENTS Fifty patients with chronic low back pain (CLBP) performed a simple leg-flexion task. Before the test, members of a control group were informed that the movement would not result in any increase of pain, whereas experimental gr...