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Effects of thalamic hemorrhagic lesions on explicit and implicit learning during the acquisition and retrieval phases in an animal model of central post-stroke pain.
Abstract Hemorrhagic stroke has many symptoms, including central pain, learning and memory impairments, motor deficits, language problems, emotional disturbances, and social maladjustment. Lesions of the ventral basal complex (VBC) of the thalamus elicit thermal and mechanical hyperalgesia, forming an animal model of central post-stroke pain (CPSP). However, no research has yet examined the involvement of learning and memory in CPSP using an animal model. The present study examined whether VBC lesions affect motor function, conditioned place preference (CPP; implicit memory), and spatial learning (explicit memory)...
Source: Behavioural Brain Research - September 24, 2016 Category: Neurology Authors: Wang CC, Shih HC, Shyu BC, Huang AC Tags: Behav Brain Res Source Type: research

Characterization of Long-term Gait Deficits in Mouse dMCAO, Using the CatWalk System.
Abstract Evaluation of functional outcome is widely used across species to assess the recovery process following various pathological conditions, including spinal cord injury, musculo-skeletal injury, mithochondrial disease, neuropathic cancer, Huntington's disease, chronic pain, cortical lesion, and olivocerebellar degeneration among others. The Stroke Therapy Academic Industry Roundtable (STAIR) recommends multiple endpoints for behavioral studies in pre-clinical stroke research, to demonstrate their clinical relevance. One of the more challenging tasks in experimental stroke research is measuring long-term func...
Source: Behavioural Brain Research - May 23, 2017 Category: Neurology Authors: Caballero-Garrido E, Pena-Philippides JC, Galochkina Z, Erhardt E, Roitbak T Tags: Behav Brain Res Source Type: research

Illusory self-identification with an avatar reduces arousal responses to painful stimuli.
Abstract Looking at one's own body has been shown to induce analgesia. In the present work we investigated whether illusory self-identification with an avatar, as induced experimentally through visuo-tactile stimulation, modulates the response to painful stimuli. In 30 healthy volunteers, a robotic device was used to stroke the participants' back, while they viewed either the body of an avatar, a non-body object (control object), or a body avatar with scrambled body parts (control body). All were visually stimulated in either congruent or incongruent fashion with the participant's body. We collected physiological ...
Source: Behavioural Brain Research - January 8, 2014 Category: Neurology Authors: Romano D, Pfeiffer C, Maravita A, Blanke O Tags: Behav Brain Res Source Type: research

10 Hz transcranial alternating current stimulation over posterior parietal cortex facilitates tactile temporal order judgment.
Abstract The temporal order judgment (TOJ) task has been widely used to investigate spatial attentional bias and the sensitivity of temporal discrimination during the processing of bilateral tactile information. Previous studies have shown that TOJ is impaired in patients who are suffering from chronic pain, stroke, and Parkinson's disease. In addition, studies have indicated that the posterior parietal cortex (PPC) is involved in the TOJ task. However, the neural basis of the TOJ task has not been fully elucidated. To investigate the causal relationship between cortical oscillation and certain behaviors, transcra...
Source: Behavioural Brain Research - April 8, 2019 Category: Neurology Authors: Otsuru N, Kamijo K, Otsuki T, Kojima S, Miyaguchi S, Saito K, Inukai Y, Onishi H Tags: Behav Brain Res Source Type: research