Blar i forfatter "Vikene, Kjetil"
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Abnormal phasic activity in saliency network, motor areas, and basal ganglia in Parkinson's disease during rhythm perception
Vikene, Kjetil; Skeie, Geir Olve; Specht, Karsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-29)Behavioral studies indicate that persons with Parkinson's disease have complexity dependent problems with the discrimination of auditory rhythms. Furthermore, neuroimaging studies show that rhythm processing activates many brain areas that overlap with areas affected by Parkinson's disease (PD). This study sought to investigate the neural correlates of rhythm processing in PD and healthy controls, ... -
Compensatory task-specific hypersensitivity in bilateral planum temporale and right superior temporal gyrus during auditory rhythm and omission processing in Parkinson’s disease
Vikene, Kjetil; Skeie, Geir Olve; Specht, Karsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-02)Persons with Parkinson’s disease have general timing deficits and have difficulties in rhythm discrimination tasks. The basal ganglia, a crucial part of Parkinson’s disease pathology, is believed to play an important role in rhythm and beat processing, with a possible modulation of basal ganglia activity by level of rhythmic complexity. As dysfunction in basal ganglia impacts function in other brain ... -
Subjective judgments of rhythmic complexity in Parkinson's disease: Higher baseline, preserved relative ability, and modulated by tempo
Vikene, Kjetil; Skeie, Geir Olve; Specht, Karsten (Journal article; Peer reviewed, 2019-09-03)Previous research has demonstrated that people with Parkinson’s disease (PD) have difficulties with the perceptual discrimination of rhythms, relative to healthy controls. It is not however clear if this applies only to simpler rhythms (a so called “beat-based” deficit), or if it is a more generalized deficit that also applies to more complex rhythms. Further insight into how people with PD process ... -
Suppression, Maintenance, and Surprise: Neuronal Correlates of Predictive Processing Specialization for Musical Rhythm
Færøvik, Ulvhild; Specht, Karsten; Vikene, Kjetil (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-27)Auditory repetition suppression and omission activation are opposite neural phenomena and manifestations of principles of predictive processing. Repetition suppression describes the temporal decrease in neural activity when a stimulus is constant or repeated in an expected temporal fashion; omission activity is the transient increase in neural activity when a stimulus is temporarily and unexpectedly ...