This study investigated the optical information and control strategies used in visually guided braking. In such tasks, drivers exhibit two different braking behaviors: impulsive braking and continuously regulated braking. We designed two experiments involving a simulated braking task to investigate these two behaviors. Participants viewed computer displays simulating an approach along a linear path over a textured ground surface toward a set of road signs. The task was to use a joystick as a brake to stop as close as possible to the road signs. Our results showed that participants relied on a weak constant-[Formula: see text] strategy (Bingham 1995) when regulating the brake impulsively. They used discrete [Formula: see text] values as critical values and they regulated the brake so as not to let [Formula: see text] fall below these values. Our results also showed that proportional rate control (Anderson and Bingham 2010, 2011) is used in continuously regulated braking. Participants initiated braking at a certain proportional rate value and controlled braking so as to maintain that value constant during the approach. Proportional rate control is robust because the value can fluctuate within a range to yield good performance. We argue that proportional rate control unifies the information-based approach and affordance-based approach to visually guided braking.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00221-020-05956-y | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Efficacy of Xpert MTB/RIF assay in detecting Mycobacterium tuberculosis in samples with different results by smear and culture in a coastal city with high incidence of tuberculosis.
BMC Infect Dis
January 2025
School of Medical Technology, Xuzhou Medical University, Xuzhou, 221004, China.
Background: Tuberculosis (TB) is a global problem that seriously jeopardizes human health. Among them, the diagnosis and treatment of smear- or culture-negative TB patients is a challenge. The Xpert MTB/RIF (Xpert) assay has been reported to be a novel molecular diagnostic tool for rapidly detecting TB.
View Article and Find Full Text PDFDesign and experimental study of tillage depth control system for electric rotary tiller based on LADRC.
Sci Rep
January 2025
The Key Laboratory for Agricultural Machinery Intelligent Control and Manufacturing of Fujian Education Institutions, Wuyi University, Nanping, 354300, Fujian, China.
This paper proposes an adaptive real-time tillage depth control system for electric rotary tillers, based on Linear Active Disturbance Rejection Control (LADRC), to improve tillage depth accuracy in tea garden intercropping with soybeans. The tillage depth control system comprises a body posture sensor, a control unit, and a hybrid stepper motor, integrating sensor data to drive the motor and achieve precise depth control. Real-time displacement sensor signals are compared with target values, enabling closed-loop control of the rotary tiller.
View Article and Find Full Text PDFReal-world effectiveness and safety of sodium-glucose co-transporter 2 inhibitors in chronic kidney disease.
Sci Rep
January 2025
Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Article Synopsis
- SGLT2 inhibitors (SGLT2i) show promise in slowing chronic kidney disease (CKD) progression but lack extensive real-world data in diverse populations.
- This study analyzed data from nearly 7,000 CKD patients (stages 2-4) treated with either SGLT2i or RAAS blockers to evaluate effectiveness and safety.
- Results indicated that SGLT2i therapy was linked to a significantly lower risk of severe kidney-related events and CKD progression, with similar adverse event rates and fewer urinary tract infections compared to RAAS treatment.
Transcatheter versus Surgical Aortic Valve Replacement in Patients Younger than 65 Years in the US.
J Thorac Cardiovasc Surg
January 2025
Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA. Electronic address:
Objective: To characterize trends and outcomes of aortic valve replacement in patients <65 with aortic stenosis between 2013 and 2021.
Methods: This retrospective analysis included 9,557 patients who underwent biological aortic valve replacement in California, New York, and New Jersey from 2013 through 2021. Patients were stratified by approach: transcatheter aortic valve replacement (TAVR) versus surgical aortic valve replacement (SAVR).
Association between activity quotient and cause-specific mortality - A prospective cohort study of 0.5 million participants in Asia.
Prog Cardiovasc Dis
January 2025
Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway; Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates; Healthy Living for Pandemic Event Protection (HL-PIVOT) Network, Chicago, IL, USA. Electronic address:
Background: Regular physical activity (PA) is important for reducing the risk of chronic diseases and improving overall health. Activity Quotient (AQ) is a novel metric that translates heart rate during PA into a weekly score, providing an objective measure of an individual's PA. We prospectively examined the association of AQ with cancer and cardiovascular (CVD) mortality outcomes, the two major causes of death, in a Taiwanese population.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!