A sensorimotor theory of temporal tracking and beat induction

2002 ◽  
Vol 66 (1) ◽  
pp. 26-39 ◽  
Author(s):  
McAngus N. Todd ◽  
C. Lee ◽  
D. O'Boyle
Keyword(s):  
Sensorimotor Theory ◽  
Temporal Tracking ◽  
Beat Induction

scholarly journals In-Plane Heatwave Thermography as Digital Inspection Technique for Fasteners in Aircraft Fuselage Panels

2020 ◽  
Vol 11 (1) ◽  
pp. 132
Author(s):  
Michael Stamm ◽  
Peter Krüger ◽  
Helge Pfeiffer ◽  
Bernd Köhler ◽  
Johan Reynaert ◽  
...  
Keyword(s):  
Inspection Time ◽  
Scanning Laser ◽  
Aviation Industry ◽  
Automated Inspection ◽  
Comparison Study ◽  
Laser Doppler Vibrometry ◽  
Inspection Method ◽  
Aircraft Fuselage ◽  
Temporal Tracking ◽  
Lock In

The inspection of fasteners in aluminium joints in the aviation industry is a time consuming and costly but mandatory task. Until today, the manual procedure with the bare eye does not allow the temporal tracking of a damaging behavior or the objective comparison between different inspections. A digital inspection method addresses both aspects while resulting in a significant inspection time reduction. The purpose of this work is to develop a digital and automated inspection method based on In-plane Heatwave Thermography and the analysis of the disturbances due to thermal irregularities in the plate-like structure. For this, a comparison study with Ultrasound Lock-in Thermography and Scanning Laser Doppler Vibrometry as well as a benchmarking of all three methods on one serviceable aircraft fuselage panel is performed. The presented data confirm the feasibility to detect and to qualify countersunk rivets and screws in aluminium aircraft fuselage panels with the discussed methods. The results suggest a fully automated inspection procedure which combines the different approaches and a study with more samples to establish thresholds indicating intact and damaged fasteners.

Remote estimation of blood pulse pressure via temporal tracking of reflected secondary speckles pattern

2010 ◽  
Vol 15 (6) ◽  
pp. 061707 ◽  
Author(s):  
Yevgeny Beiderman ◽  
Israel Horovitz ◽  
Natanel Burshtein ◽  
Mina Teicher ◽  
Javier Garcia ◽  
...  
Keyword(s):  
Pulse Pressure ◽  
Temporal Tracking ◽  
Remote Estimation

scholarly journals fMRI Supports the Sensorimotor Theory of Motor Resonance

PLoS ONE ◽  
2011 ◽  
Vol 6 (11) ◽  
pp. e26859 ◽  
Author(s):  
Claire Landmann ◽  
Sofia M. Landi ◽  
Scott T. Grafton ◽  
Valeria Della-Maggiore
Keyword(s):  
Motor Resonance ◽  
Sensorimotor Theory

Abstract 153: Automated Angiographic Assessment Of Coronary Artery Vasomotion In Kawasaki Disease Patients

Circulation ◽  
2015 ◽  
Vol 131 (suppl_2) ◽  
Author(s):  
Mitchel Benovoy ◽  
Farida Cheriet ◽  
Roch L Maurice ◽  
Nagib Dahdah
Keyword(s):  
Health Assessment ◽  
Assessment System ◽  
Vascular Health ◽  
Pressure Gradients ◽  
Intracoronary Imaging ◽  
Temporal Tracking ◽  
Vascular Physiology ◽  
The Mean ◽  
Spatio Temporal ◽  
Stiffness Characteristics

Background: Mechanical properties of coronary arteries (CA) hold clues to vascular health and viability. Traditionally assessed with intracoronary imaging, we present an angiography-based system to assess CA vasomotion using automatic vessel segmentation and spatio-temporal tracking. Elastic moduli computed from dynamic CA calibers are compared between non-KD patients (CTL), KD patients with no CA aneurysms (KDAN-), and those with aneurysms (KDAN+). Methods: Proximal CA angiograms are automatically segmented and tracked over a cardiac cycle. CA centerline is extracted and the mean caliber is computed from diameters along its length. The resulting caliber variation reflects the CA vasomotion (Figure 1a). We then calculated the Vasomotion Standard Deviation (VSD) and CA recoil with the mean constriction velocity (MCV). Finally, Elastic Pressure moduli were computed using trans-myocardium pressure gradients. Results: We analyzed 51 left CA segments from 23 patients (5 CTL, 5 KDAN-, 13 KDAN+). Data are mean ± SD normalized pixels (npx). VSD was significantly reduced ( p <0.01) in KDAN+ (0.25±0.05) and KDAN- (0.27±0.04) vs CTL (0.38±0.07 npx). Coronary recoil was significantly reduced (p<0.05) in KDAN+ vs CTL, with MCV 3.50±0.67 vs 4.59±1.94 npx/sec. Pressure-dependent stiffness characteristics were equally atypical (Figure 1b). Conclusion: The proposed angiography-based stiffness assessment system shows abnormal CA vascular physiology in our cohort of KD patients. These results concur with previous invasive studies. The potential usability of this system for vascular health assessment could be applied to previously recorded CA angiograms for risk stratification.

4. A grand illusion

2017 ◽  
pp. 51-66
Author(s):  
Susan Blackmore
Keyword(s):  
Inattentional Blindness ◽  
Subjective Experiences ◽  
Sensorimotor Theory ◽  
Sensorimotor Contingencies ◽  
The Way

Is consciousness an illusion? If so, it isn’t that consciousness doesn’t exist, but that it isn’t what it seems. ‘A grand illusion’ considers change and inattentional blindness, challenging the way we think about our visual experiences. Traditional vision theories, with their detailed inner representations, cannot explain how or why those representations become conscious experiences or why we seem to be someone looking at those representations. Sensorimotor theory, proposed by psychologist Kevin O’Regan and philosopher Alva Noë, suggests vision means mastering sensorimotor contingencies. It turns the problem upside down, making the viewer into an actor and the visions into actions. This theory must now explain how actions can be subjective experiences.

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