Stimulus modality affects the accuracy of rhythm production in rats

2021 ◽  
pp. 104560
Author(s):  
Noriko Katsu ◽  
Kazuo Okanoya
Keyword(s):  
Stimulus Modality ◽  
Rhythm Production

Functional Anatomy of Intensity Aspects of Attention

2003 ◽  
Vol 14 (3) ◽  
pp. 181-190 ◽  
Author(s):  
Walter Sturm
Keyword(s):  
Right Hemisphere ◽  
Functional Anatomy ◽  
Fmri Data ◽  
Functional Networks ◽  
Top Down ◽  
Stimulus Modality ◽  
Spatial Orienting ◽  
Phasic Alertness ◽  
Co Activation ◽  
Attention System

Abstract: Behavioral and PET/fMRI-data are presented to delineate the functional networks subserving alertness, sustained attention, and vigilance as different aspects of attention intensity. The data suggest that a mostly right-hemisphere frontal, parietal, thalamic, and brainstem network plays an important role in the regulation of attention intensity, irrespective of stimulus modality. Under conditions of phasic alertness there is less right frontal activation reflecting a diminished need for top-down regulation with phasic extrinsic stimulation. Furthermore, a high overlap between the functional networks for alerting and spatial orienting of attention is demonstrated. These findings support the hypothesis of a co-activation of the posterior attention system involved in spatial orienting by the anterior alerting network. Possible implications of these findings for the therapy of neglect are proposed.

The effect of stimulus modality on thought suppression

2009 ◽  
Author(s):  
Erin J. Lightman ◽  
Travis L. Seymour ◽  
Eric H. Schumacher
Keyword(s):  
Thought Suppression ◽  
Stimulus Modality

Rhythm Production by the Bottlenose Dolphin

2004 ◽  
Author(s):  
Heidi E. Harley ◽  
Wendi Fellner ◽  
Leslie Larsen-Plott
Keyword(s):  
Bottlenose Dolphin ◽  
Rhythm Production

scholarly journals Tracking Keystroke Sequences at the Cortical Level Reveals the Dynamics of Serial Order Production

2019 ◽  
Vol 31 (7) ◽  
pp. 1030-1043 ◽  
Author(s):  
Svetlana Pinet ◽  
Gary S. Dell ◽  
F.-Xavier Alario
Keyword(s):  
Response Selection ◽  
Serial Order ◽  
Stimulus Modality ◽  
Inhibitory Component ◽  
Cortical Level ◽  
Auditory Response ◽  
Alternative Responses ◽  
Inhibition Pattern ◽  
Eeg Pattern ◽  
Activation Component

Response selection is often studied by examining single responses, although most actions are performed within an overarching sequence. Understanding processes that order and execute items in a sequence is thus essential to give a complete picture of response selection. In this study, we investigate response selection by comparing single responses and response sequences as well as unimanual and bimanual sequences. We recorded EEG while participants were typing one- or two-keystroke sequences. Irrespective of stimulus modality (visual or auditory), response-locked analysis revealed distinct contralateral and ipsilateral components previously associated with activation and inhibition of alternative responses. Unimanual sequences exhibited a similar activation/inhibition pattern as single responses, but with the activation component of the pattern expressed more strongly, reflecting the fact that the hand will be used for two strokes. In contrast, bimanual sequences were associated with successive activation of each of the corresponding motor cortices controlling each keystroke and no traceable inhibitory component. In short, the activation component of the two-keystroke sequence EEG pattern can be understood from the addition of activation components of single-stroke sequences; the inhibition of the hand not being used is only evidenced when that hand is not planned for the next stroke.

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