Recently it has been suggested that, somehow similarly to visual saccadic suppression, saccades interrupt some mental activities. After demonstrating that spontaneous eye movements can be used to trace the instantaneous evolution of mental imagery, we show here that making a voluntary saccade or anti-saccade as a secondary task introduces a large delay in a concurrent motion imagery task. An id...

OBJECTIVE To ascertain whether a small sample of patients with chronic pelvic pain experienced any pain-related cognitions in the form of mental images. PATIENTS Ten women with chronic pelvic pain consecutively referred from a tertiary referral center by the physicians in charge of their treatment. OUTCOME MEASURES An interview was used to determine the presence, emotional valence, content,...

The researches have shown that mental practice has the effective role in aquisition of motor skills. On the other hand in orthopaedic rehabilitation, balance exercise is used effectively to improve proprioception impairment that resulting from joint injuries. Little work has been done to evaluate and compare the effects of mental (M), Physical (P), and mental - physical (MP) practice on standin...

Background and Purpose of the Study: 50%-65% of stroke survivors have residual motor deficits;principal among them is hemi paretic gait that limits mobility, increases the risk of falls and promoting sedentary life style. Motor imagery (MI) an active process during which a specific action is reproduced within working memory without any real movements. There are evidences for MI training in enha...

[Purpose] This study examined whether limited mental practice improves the motor performance of poststroke individuals with hemiparesis. [Subjects] Twenty-three participants with poststroke hemiparesis (40-82 years of age) participated in this study. [Methods] The subjects were divided into four groups with respect to a dart-throwing task: the no-practice, physical practice only, mental practic...

Numerous studies have confirmed that motor imagery may result in plastic change in motor system as actual physical activity. However, whether motor imagery can improve muscle strength of the trained persons remains unclear. The aim of this study is to investigate the effect of motor imagery on muscle strength. Totally 12 healthy college students were involved in 4 weeks of mental rehearsal of r...

Motor imagery, the 'mental rehearsal of motor acts without overt movements', involves either a visual representation (visual imagery, VI) or mental simulation of movement, associated with a kinesthetic feeling (kinetic imagery, KI). Previous brain imaging work suggests that patterns of brain activation differ when comparing execution (E) with either type of imagery but the functional connectivi...

mental imagery remains a contentious issue among researchers. Questionnaires are widely used for measuring mental imagery (for a reviews, see McKelvie, 1995; and Richardson, 1994). Of these, the most predominant are the Vividness of Visual Imagery Questionnaire (VVIQ; Marks, 1973) that measures vividness of visual imagery, and the Betts’ Questionnaire Upon Mental Imagery (Betts’ QMI; Sheehan, 1...

BACKGROUND We need to better understand the cognitive factors associated with risk for bipolar disorders. Recent research suggests that increased susceptibility to mental imagery may be one such factor. However, since this research was primarily conducted with Western students and at a single time-point, it is not known whether the relationship between imagery susceptibility and bipolar symptom...

This article investigates the relationship between visual mental representations and spatial mental representations in human visuo-spatial processing. By comparing two common theories of visuo-spatial processing - mental model theory and the theory of mental imagery - we identified two open questions: (1) which representations are modality-specific, and (2) what is the role of the two represent...