Humanising Computer Aids affects trust and dependence

Computerized aids that include person-like characteristics can influence trust and dependence among adults, according to a Clemson University researcher.

A recently published study by Clemson University psychology associate professor Richard Pak examined how decision-making would be affected by a human-like aid.

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The study focused on adults' trust, dependence, and performance while using a computerized decision-making aid for persons with diabetes.

The study is one of the first to examine how the design of decision-support aids on consumer devices can influence the level of trust that users place in that system and how much they use it.

Richard Pak

The design and look of an aid are important elements for designers because of the potential dangers associated when users trust unreliable decision aids or lack trust for reliable aids simply because of the their appearance.

"Just as trust is an important factor in how humans deal with other humans, it also can determine how users interact with computerized systems," Pak said. "Trust can be influenced by the aid's reliability and level of computerization as well as the user's experience and age."

Many people interact with computerized decision aids or automation on a daily basis, whether they're using smart phones, digital cameras or global positioning systems. When automation is only reliable sometimes, a person's level of trust becomes an important factor that determines how often the aid will be used.

"Figuring out how trust is affected by the design of computerized aids is important because we want people to trust and use only reliable aids," said Pak.

Pak's research findings have revealed that the inclusion of an image of a person can significantly alter perceptions of a computerized aid when there is no difference in the aid's reliability or presentation of information.

"Humanlike computer aids provide a reduced decision-making reaction time for adults," said Pak. "A plausible explanation is that the increase in trust led to an increased dependence on the aid, which led to faster performance."

Pak's future research will examine the specific aspects of the aid that affect trust in different age groups and gender.

He also is studying the affects of the aids on users when faced with decisions that have either a high consequence, such as making health decisions, or a low consequence, such as deciding what type of computer to buy.

Pak's study was published Tuesday in the journal Ergonomics. The journal article was co-authored by Clemson researchers Nicole Fink, Margaux Price, Brock Bass and Lindsay Sturre.

How does Creativity Work

Let's look at a more accurate view of creativity, with its roots in modern science. The watershed year is 1998, when Brenda Milner, Larry Squire, and Eric Kandel published a breakthrough article in the journal Neuron, “Cognitive Neuroscience and the Study of Memory.”

Kandel won the Nobel Prize two years later for his contribution to this work. Since then, neuroscientists have ceased to accept Sperry’s two-sided brain. The new model of the brain is “intelligent memory,” in which analysis and intuition work together in the mind in all modes of thought.

There is no left brain; there is no right. There is only learning and recall, in various combinations, throughout the entire brain.

Neuroscientist Barry Gordon gives an overview of this newer model of the brain in his book Intelligent Memory: Improve the Memory That Makes You Smarter (Viking, 2003), with coauthor Lisa Berger. He portrays the everyday intelligent memory of human beings as the greatest inventory system on earth.

From the moment you’re born, your brain takes things in, breaks them down, and puts them on shelves. As new information comes in, your brain does a search to see how it might fit with other information already stored in your memory.

When it finds a match, the previous memories come off the shelf and combine with the new, and the result is a thought. The breaking down and storing process is analysis. The searching and combining is intuition.

Both are necessary for all kinds of thought. Even a mathematical calculation requires the intuition part, to recall the symbols and formula previously learned in order to apply them to the problem.

When the pieces come off the shelf smoothly, in familiar patterns — such as simple addition you’ve done many times — you don’t even realize it has happened. When lots of different pieces combine into a new pattern, you feel it as a flash of insight, the famous “aha!” moment. But the mental mechanism works the same way in both cases.

Whether it’s working on a familiar formula or a new idea, intelligent memory combines analysis and intuition as learning and recall.

Just as the intelligent memory concept has replaced the old two-sided brain theory in neuroscience, people in groups need to replace brainstorming with methods that reflect more accurately how creative ideas actually form in the mind, and they don’t need to start from scratch.

Once we understand how intelligent memory works, we find several existing techniques that fit. After all, human beings have innovated for eons. If we study how innovation actually happens, we can learn how to do it more reliably.

New theory links depression to chronic brain inflammation

Chronic depression may be an adaptive, reparative neurobiological process gone wrong, say two University of California, San Diego School of Medicine researchers, positing in a new theory that the debilitating mental state originates from more ancient mechanisms used by the body to deal with physical injury, such as pain, tissue repair and convalescent behaviour.

In a paper published in the September online edition of Neuroscience and Biobehavioral Review, Athina Markou, PhD, professor of psychiatry, and Karen Wager-Smith, a post-doctoral researcher, integrate evidence from diverse clinical, biological and behavioural studies to create a novel theory they hope will lead to a shift in thinking about depression.

“In contrast to other biological theories of depression, we started with a slightly different question,” said Wager-Smith. “Other theories address the question: ‘What is malfunctioning in depression?’ We took a step back and asked the question: ‘What is the biology of the proper function of the depressive response?’

Once we had a theoretical model for the biology of a well-functioning depressive response, it helped make sense of all the myriad differences between depressed and non-depressed subjects that the biomedical approach has painstakingly amassed.”

According to the new theory, severe stress and adverse life events, such as losing a job or family member, prompt neurobiological processes that physically alter the brain. Neurons change shape and connections.

Some die, but others sprout as the brain rewires itself. This neural remodeling employs basic wound-healing mechanisms, which means it can be painful and occasionally incapacitating, even when it’s going well.

“It’s necessary and normal so that an individual can adapt, change behavior and deal with altered circumstances,” Markou said. Real problems occur only “when these restructuring processes go into overdrive, beyond what is necessary and adaptive, and for longer periods of time than needed. Then depression becomes pathological.”

The theory extends findings made by other researchers that the neurobiological substrates of physical and emotional pain overlap. Just as the body’s repair mechanisms for physical injury can sometimes result in chronic pain and inflammation, so too can the response to psychological trauma, resulting in chronic depression.

Markou and Wager-Smith argue that existing, conflicting views about depression actually describe different aspects of the same phenomenon. Psychoanalytic and sociological theories refer to the psychological transformation that occurs during a productive depressive episode.

Biomedical theories relate to the neural remodeling that underlies this psychological change. And neurodegenerative theories account for remodeling malfunctions.

“The big question, of course, is why aren’t all people affected the same way,” said Markou. “Why do some people deal effectively with stress, but others perpetuate a pathological state? This is an interesting question for future research.”

To read more follow this link ......New theory links depression to chronic brain inflammation | Science Blog

The Secret Powers of Time - Animated video

Professor Philip Zimbardo conveys how our individual perspectives of time affect our work, health and well-being. Time influences who we are as a person, how we view relationships and how we act in the world. View the full video of Professor Philip Zimbardo’s talk at the RSA.