Navigation Links
How does an outfielder know where to run for a fly ball?
Date:1/21/2010

reality lab to perturb the balls' vertical motion in ways that would not happen in reality, they were able to isolate different characteristics of each theory. The subjects tended to adjust their forward-backward movements depending on the perceived elevation angle of the incoming ball, and separately move from side to side to keep the ball at a constant bearing, consistent with the theory of optical acceleration cancellation (OAC). The third theory, linear optical trajectory (LOT), predicted that the outfielder will run in a direction that makes the visual image of the ball appear to travel in a straight line, adjusting both forward-backward and side-to-side movements together.

Fink said these results focus on the visual information a ball player receives, and that future studies could bring in other variables, such as the effect of the batter's movements or sound.

"As a first step we chose to concentrate on what seemed likely to be the most important factor," Fink said. "Fielders might also use information such as the batter's swing or the sound of the bat hitting the ball to help guide their movements."


'/>"/>

Contact: Jessie Williams
jwilliams@arvo.org
240-221-2924
Association for Research in Vision and Ophthalmology
Source:Eurekalert

Page: 1 2

Related medicine news :

1. It's January...Do You Know Where Your Thyroid Is? Thyroid Awareness Month Focuses on Millions of Undiagnosed Americans with Thyroid Problems
2. New Study Says Doctors' Offices -- Not the DMV -- Should Be Where Americans Decide to Become Organ Donors
3. Duda, whered my spines go?
4. Children & Health Reform: Where We Stand
5. The importance of attractiveness depends on where you live
6. Blue Cross and Blue Shield of Minnesota and Fairview Health Services Launch Online Care Anywhere(TM)
7. ShowMyPC Provides First Online Service in the World to Access Personal Computers from Anywhere Using Microsoft Remote Desktop
8. Physicians Heal Bridge to Nowhere; Iraqi Girl With Rare Neuromuscular Disorder Has New Hope
9. Where You Put on Pounds May Influence Clot Risk
10. Skin cells may provide early warning for cancer risk elsewhere in body
11. How should mental, neurological and substance use disorders be treated where resources are scarce?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/28/2015)... 28, 2015 MSA Executive Search ... search, announced today that it has been retained to ... Officer search for The Queen's Health Systems ... to QHS President & CEO Arthur A. Ushijima, the ... operating responsibility for the Queen’s Medical Center Punchbowl and ...
(Date:4/28/2015)... 2015 A new survey from National ... damage, 66 percent of Americans fear brain damage the most. ... Month in May, shed light on the need for greater ... prevent a stroke. By controlling modifiable risk factors, 80 ... is a “ brain attack ” that occurs when blood ...
(Date:4/28/2015)... As the Muscular Dystrophy Association ... programs, the organization has hired Scientific Program Officer ... from Fidelity Biosciences Research Initiative where, as Associate ... neurodegenerative diseases such as Alzheimer’s Disease, and organized ... at Fidelity, she was a junior faculty member ...
(Date:4/28/2015)... New York (PRWEB) April 28, 2015 Celebrating ... in Commack. 2015 will be the third year that all ... for the entire week. Hands On is offering some great ... offered. "What better time of the year could there be ... On. "All women deserve pampering and this is a terrific ...
(Date:4/28/2015)... The buyer power score for ... indicating a medium level of buyer power in the ... equal power during negotiations. One factor helping buyer power ... health insurance policy from an insurance carrier (such as ... choose to self-fund their own policy or forgo insurance ...
Breaking Medicine News(10 mins):Health News:The Queen’s Health Systems Retains MSA Executive Search to Recruit Executive Vice President & Chief Operating Officer 2Health News:National Stroke Association Survey Reveals Americans Fear Brain Damage the Most, but Few Take the Necessary Steps to Prevent a Stroke 2Health News:National Stroke Association Survey Reveals Americans Fear Brain Damage the Most, but Few Take the Necessary Steps to Prevent a Stroke 3Health News:MDA Adds Neurological Disease Expert to Research Team 2Health News:MDA Adds Neurological Disease Expert to Research Team 3Health News:Commack Massage Therapy and Wellness Day Spa Dedicates Time To Celebrate Women 2Health News:New Data for Group Health Insurance Procurement Category Market Research Report from IBISWorld 2Health News:New Data for Group Health Insurance Procurement Category Market Research Report from IBISWorld 3Health News:New Data for Group Health Insurance Procurement Category Market Research Report from IBISWorld 4
... tested positive for the deadly H5N1 strain of the bird flu ... treatment.// ,Turan Buzgan, head of the health ministry's Basic Health ... at a government laboratory in Ankara. ,This brought to ... virulent form of the virus, since the outbreak began last month; ...
... major cause of overeating is eating too many flavors all ... for more food, says David Katz, M.D.// ,Dr Katz ... for Food Policy & Obesity at Yale University, has written ... phenomenon he said is well studied, but is well known ...
... cardiac arrests than adults; with appropriate cardiopulmonary resuscitation (CPR), ... thought.// ,These are some findings of the ... by Robert A. Berg, MD, professor of pediatrics and ... Medicine. ,The study results have been published ...
... states that post-menopausal women who cut their fat intake and ... grains tend to lose weight. // , ,The study ... gain and increasing of obesity rates. ,The results ... a low-fat diet without any weight-loss goals. In the first ...
... University of Chicago have discovered an important mechanism used by ... of the brain that interprets visual signals.// ,In ... for a decades-old model of how neurons establish distant connections ... ,The research paper is published in the January 5, ...
... Wilmington-based HIV/AIDS community outreach program in Delaware has thought ... HIV/AIDS.// ,Its “Do the Right Thing 4Life” program—supported ... treatment, as well as condoms, to people via the ... Thing 4Life—founded by Frank Hawkins, director of education and ...
Cached Medicine News:Health News:Overeating Caused By Consuming Too Many Flavors All At Once 2Health News:After Cardiac Arrest, Children Fare Better Than Adults 2Health News:Chemical Signaling Helps Regulate Sensory Map Formation In The Brain 2Health News:Chemical Signaling Helps Regulate Sensory Map Formation In The Brain 3
(Date:4/28/2015)... , April 28, 2015  Medical ... pleased to announce a partnership with Terso ... frequency identification (RFID) storage and transport units.  ... Terso to enhance capabilities and provide increasingly ... is a comprehensive inventory management system that ...
(Date:4/28/2015)... 2015 Exagen Diagnostics, Inc., a commercial-stage ... need for the accurate diagnosis and monitoring of ... that its Avise SLE+ Connective Tissue 2.0 diagnostic ... launch, and that adoption continues to grow. The ... Tissue Disease (CTD), including, but not limited to, ...
(Date:4/28/2015)... 2015  The Physician-Patient Alliance for Health & ... RRT has joined the Physician-Patient Alliance Board of ... Registered Respiratory Therapist who has practiced in the post-acute ... his excellent work on critical patient safety issues. He ... (AARC) at various conferences addressing the need for ...
Breaking Medicine Technology:Medical Tracking Solutions, Inc., Partners with Terso Solutions, Inc. 2Exagen Sees Growing Adoption of Avise Diagnostic for Connective Tissue Disease with New Milestone 2Noted Respiratory Therapist and AARC Representative Gene Gantt Joins Physician-Patient Alliance for Health & Safety Advisory Board 2
... Researchers from the University of Cincinnati presented results from ... Society 2011 Annual Meeting today, demonstrating how PEM-guided ... for breast cancer patients.   PEM ... the location as well as the metabolic phase of ...
... F. Kennedy designated the month of May as Older Americans ... tradition to pay tribute to older adults. At that time, ... to the Administration on Aging. In 2009, this number totaled ... older adults rely on the support of their loved ones, ...
Cached Medicine Technology:Study Shows Same Day PET-Guided Biopsy May Expedite Pre-Operative Work-up For Breast Cancer Patients and Reduce Radiation Exposure 2May is Older Americans Month 2
Coaxial Multicolor LIO Worlds first coaxial multicolor LIO provides precise laser delivery with repeatable outcomes, as well as maximum treatment options and physician safety....
Novus 3000 A fully-integrated and powerful 532 nm Operating Room Photocoagulator with reliable DPSS technology and simplified operation using a touch screen interface and remote control....
Patient-Centered Therapy that promotes natural cardiac function....
... Delivery System (CDS) facilitates the ... the Aescula LV Left-Heart Lead. ... patented coronary sinus curve that ... access to the coronary sinus ...
Medicine Products: