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All Articles Tagged As: animal intelligence
Recruitment of new neurons slows when old brain cells kept from dying
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A new area of the cerebral cortex has evolved to enable man and higher primates to pick up small objects and deftly use tools. The brain's primary motor cortex turns out to have neighboring "old" and "new" parts. In most animals, including cats, rats and some monkeys, the old primary motor cortex controls movement indirectly through the circuitry of the spinal cord.
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 | A new study provides evidence that gorilla communication is linked to the left hemisphere of the brain - just as it is in humans. ...> Full Article |
 | Research on octopuses has shed new light on how our brains store and recall memory ...> Full Article |
 | Young songbirds babble before they can mimic an adult's song, much like their human counterparts. Now, in work that offers insights into how birds--and perhaps people--learn new behaviors, scientists have found that immature and adult birdsongs are driven by two separate brain pathways, rather than one pathway that slowly matures. ...> Full Article |
 | Dog owners, who have noticed that their four-legged friend seem equally delighted to see them after five minutes away as five hours, may wonder if animals can tell when time passes ...> Full Article |
Experiments test chimpanzees' ability to make judgments about the reputation of strangers
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Researchers have made what they say is the first experimental demonstration that a primate other than humans conveys meaning by combining distinct alarm calls in particular ways. The study appears in the March 11th issue of Current Biology, a publication of Cell Press.
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 | An area of the brain involved in the planning and production of spoken and signed language in humans plays a similar role in chimpanzee communication, researchers report. ...> Full Article |
Researchers have found the area in the chimpanzee brain involved in the production of chimpanzee manual gestures and vocalizations is similar to what is known as Broca's area in the human brain. The study, available in today's online edition of Current Biology, is the first to directly link chimpanzee and human brain areas associated with communicative behaviors, suggesting chimpanzee communication is not only more complicated than previously thought, but also that the neurobiological foundations of human language may have been present in the common ancestor of modern humans and chimpanzees.
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Shedding new light on the great cognitive rift between humans and animals, a Harvard University scientist has synthesized four key differences in human and animal cognition into a hypothesis on what exactly differentiates human and animal thought.
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 | Analyzing how the brains of songbirds respond to singing patterns has provided new information about how humans learn to communicate with each other, according to Duke University researchers. ...> Full Article |
 | Researchers have demonstrated that monkeys have the ability to perform mental addition. In fact, monkeys performed about as well as college students given the same test. ...> Full Article |
 | How many times a day do you grab objects such as a pencil or a cup? We perform these tasks without thinking, however the motor planning necessary to grasp an object is quite complex. The way human adults grasp objects is typically influenced more by their knowledge of what they intend to do with the objects than the objects' immediate appearance. Psychologists call this the "end-state comfort effect," when we adopt initially unusual, and perhaps uncomfortable, postures to make it easier to actually use an object. ...> Full Article |
Nonhuman primates respond negatively when their fellow animals receive better rewards, but the reaction is based on fairness and not on awareness that better rewards are available.
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Like adults, children and monkeys rationalize their decisions following a tough choice, Yale University researchers report in Psychological Science.
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 | Dog owners who think their beloved pooch can read their mind may be right. ...> Full Article |
 | When it comes to their social behavior, people sometimes act like monkeys, or more specifically, like rhesus macaques, a type of monkey that shares with humans strong tendencies for nepotism and political maneuvering. ...> Full Article |
 | Chimpanzees make irrational choices, in the same way that humans do, suggesting a common evolutionary origin rather than quirks unique to humans. ...> Full Article |
 | When trying to understand someone's intentions, nonhuman primates expect others to act rationally by performing the most appropriate action allowed by the environment, according to a new study by researchers at Harvard University. ...> Full Article |
 | There's a reason cats rarely make a false step - they remember where their feet have been. ...> Full Article |
 | When using gestures to get their points across, orangutans rely on the same basic strategy that humans follow when playing the popular game and intentionally modify or repeat hand (or other) signals based on the success or failure of their first attempt. ...> Full Article |
 | "Like humans, monkeys benefit enormously from being actively involved in learning instead of having information presented to them passively," said Nate Kornell, a UCLA postdoctoral scholar in psychology and lead author of the study, which appears in the August issue of the journal Psychological Science. "The advantage of active learning appears to be a fundamental property of memory in humans and nonhumans alike." ...> Full Article |
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