Katarzyna Ewa Polanowska

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The aim of this randomised, double-blind study was to investigate the therapeutic effectiveness of left-hand electrical stimulation for patients with post-stroke left visuo-spatial neglect. This approach was hypothesised to enhance activation of the right hemisphere attention system and to improve visual exploration of extrapersonal space. Participants (n =(More)
Left unilateral spatial neglect resulting from right brain damage is characterized by loss of awareness for stimuli in the contralesional side of space, despite intact visual pathways. We examined using fMRI whether patients with neglect are more likely to consciously detect in the neglected hemifield, emotionally negative complex scenes rather than(More)
BACKGROUND AND PURPOSE Recent research suggests that an increased level of stroke-affected left hemisphere cortical (especially frontal) excitability is associated with better language improvement in aphasic patients. Anodal transcranial direct current stimulation (A-tDCS), increasing cortical activity, may facilitate perilesional left hemisphere(More)
PURPOSE Recent research in patients with chronic aphasia shows an association between excitatory anodal transcranial direct current stimulation (A-tDCS) of the stroke-affected left hemisphere coupled with speech and language therapy (SLT) and better language performance. The present study aimed to investigate this association during the early post-stroke(More)
OBJECTIVE To determine whether cumulative anodal transcranial direct current stimulation (A-tDCS) of the left dorsolateral prefrontal cortex (DLPFC) could enhance rehabilitation of memory and attention in patients with traumatic brain injury (TBI). SETTING Inpatient and outpatient neurorehabilitation unit. PARTICIPANTS Twenty-three adult patients, 4- to(More)
OBJECTIVE The presented case study describes the beneficial results of the neuropsychological rehabilitation of a gunshot victim, even with late initialization of the therapy--over 1 year after head trauma. DESIGN A case study of DE, a victim with bilateral damage of the parietal-occipital regions of the brain due to a gunshot. METHODS(More)
Clinical consequences of brain injuries are not simply the result of the initial insult, but also reflect dynamic changes of activity in disrupted neural networks, some of which might be maladaptive. Transcranial direct current stimulation (tDCS), which delivers weak polarizing direct currents to the cortex, is used to modulate cortical excitability. The(More)
BACKGROUND Left-sided transcutaneous electrical nerve stimulation (TENS) increases right hemispheric activity, which may improve the rehabilitative outcome of hemispatial neglect. OBJECTIVE To examine the behavioral effect of electrical stimulation of the nerve afferents of the left hand during early neuropsychological rehabilitation of post-stroke(More)
Apraxia of speech (AOS) is a motor speech disorder, most typically caused by stroke, which in its "pure" form (without other speech-language deficits) is very rare in clinical practice. Because some observable characteristics of AOS overlap with more common verbal communication neurologic syndromes (i.e. aphasia, dysarthria) distinguishing them may be(More)
Transcranial direct current stimulation (tDCS) is an emerging technique of non-invasive brain stimulation that has been found useful in facilitating treatment of various neurological disorders, especially stroke. Currently available criteria for single application of several minutes-long stimulation at 1-2 mA have been considered safe. However, knowledge(More)