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Tag: "perceptual" at biology news

New insight into people who 'see' colors in letters and numbers

...tion called synesthesia--in which people's sensory perceptual circuitry seems to be miswired--was long dismissed as an oddity not worthy of scientific study. Now, however, researchers such as Hubbard and his colleagues are using the condition to gain insights into the neural basis of perception. In their exper...

Six previously blind patients detect light, motion, identify objects with retinal prostheses

...evice, the subjects do not show any improvement in perceptual acuity, "suggesting that electrical stimulation did not improve the health or function of the retina." Thus far, participants in the study have been people with little or no sight perception due to the degenerative eye disease retinitis pigmentosa (...

Cracking the perception code

...e sensitive at the beginning than at the end, or a perceptual process after neuronal firing could give more subj...ing and how the firing patterns are interpreted by perceptual areas of the brain is a huge challenge in neurophysiology, one that's often overlooked, said Romo. ...

'Uniquely human' component of language found in gregarious birds

...aborated on studies of the role of sleep in speech perceptual learning. Gentner, a neuropsychologist, expert on starlings and, at the time, a postdoctoral fellow at the University of Chicago, was an essential addition. To assess the birds' syntactical skills, the research team exploited the diverse sounds in...

Sweet 'water taste' paradoxically predicts sweet taste inhibitors

...the cellular responses directly parallel the human perceptual responses. At lower concentrations, sweeteners ... so complete a molecular explanation for a complex perceptual phenomenon. We can now use sweet water taste as a predictor for potential sweet inhibitors." Sweet...

Watching the brain switch off 'self'

...the role of self-related cortex is not in enabling perceptual awareness, but rather in allowing the individual t...s from the present results is that, during intense perceptual engagement, all neuronal resources are focused on sensory cortex, and the distracting self-related c...

UC Riverside psychologist explores human perception, finds 'wow factor'

...e able to do that," said Rosenblum, whose field is perceptual psychology. "Some are very surprised when it turns out that they can." Rosenblum has given test subjects quite a few such surprises. For example, participants in his work have shown that they can determine the locations of objects by listening to ec...

Lost in thought: Brain research

... do not function as a critical element that allows perceptual awareness of the outside world. Rather, the self-related areas of the prefrontal cortex appear to be engaged specifically when we are aware both of the sensory experience and of ourselves as the observers of this experience. When we are so occupied w...

Do angry men get noticed?

...ale faces is consistent with the notion that human perceptual processes have been shaped by evolutionary pressures arising from the social environment. ...

Perceived facial similarity in children is an estimate of kin recognition

...ve shown that a complex, difficult to characterize perceptual judgment ('facial similarity') can be simply defined in evolutionary terms: judged facial similarity of children appears to be little more than a visual assessment of genetic relatedness," said Maloney. ...

New dyslexia theory blames 'noise'

...at programs that foster the development of sharper perceptual categories for letters and letter sounds might be a good way to supplement existing dyslexia interventions," she added. Lu said, "Train them in noise." The new study in Psychological Science builds on similar results published by the team of S...

Memories: It's all in the packaging, scientists say

...ht together and processed by the brain as a common perceptual representation, before being stored." ...

How the brain weaves a memory

... receives an "episodic packet," or a collection of perceptual strands that it must integrate into a memory. In ...equires that the features be conjoined in a common perceptual representation when the episode is initially experienced." ...

Using brain scans, researchers find evidence for a two-stage model of human perceptual learning

...as well as offer strategies to retrain people with perceptual deficits due to autism. In the March 15 issue of Neuron , the research team provides the first human evidence for a two-stage model of how a person learns to place objects into categories ?discerning, for example, that a green apple, and not a gree...

Wired for sound: How the brain senses visual illusions

...., UCSD professor of neurosciences. "This type of perceptual illusion has been described before," said first au..., brain responses that are directly related to the perceptual experiences induced by sensory stimuli, using an electrophysiological or EEG recording procedure tha...

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