"Studies have shown that when subjects see an emotional stimulus as opposed to a neutral one, they're slower in making reaction time responses and they're slower when doing a visual search," said Chan. "I wanted to see whether the results would carry over in driving—would we also find more distracted performance in driving?—and we did see that."
Emotionally charged words affected the subjects' driving focus, something that may make driving in real conditions hazardous. Chan says that subjects who viewed the negative words decreased travelling speed when passing the signs and tended to drift and veer from their lane. Conversely, drivers viewing the words with positive connotations sped up when passing the signs—a response the researchers said supported other research.
"There have been studies showing that when you're positively stimulated, your attention broadens, so you perform better when you're in a happy mood," said Chan. "In my results, we also saw that when we looked at the reaction-time data in response to target words, participants actually responded faster in the positive block than in the negative block."
Chan says a precedent already exists Down Under for dealing with this type of distraction, but some places may be harder to convince than others.
"In Australia they have really strict billboard criteria, but in the United States it's less so," she said. "When you're driving in Las Vegas, you'll see a bunch of profane billboards. There are also some really graphic anti-smoking billboards around."
Chan contends that emotional distraction while driving may come from anything from music to news to conversations, so it would be hard to legislate against those types of factors. Self-regulation on the images and language marketers use on billboards could be one way to reduce potential for emotionally related vehicular incidents.
Ultimately, she says, drivers need to take responsibility for their actions behind the wheel, even if it meets reducing the usual driving stimuli such as talking or listening to the radio.
"Any kind of distraction is risky when you're driving. But there would appear to be a larger risk when it comes to emotional stimuli."
Jamie Hanlon | EurekAlert!
New Technologies for A/V Analysis and Search
13.04.2017 | Fraunhofer-Institut für Digitale Medientechnologie IDMT
On patrol in social networks
25.01.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.
Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
19.09.2017 | Event News
12.09.2017 | Event News
06.09.2017 | Event News
25.09.2017 | Power and Electrical Engineering
25.09.2017 | Health and Medicine
25.09.2017 | Physics and Astronomy