Articles tagged with Animal Learning
Researchers found that fine emotional learning tasks produce greater learning specificity in mice, improving pitch discrimination abilities. The study established a link between emotions and perception of the world, with effects mediated by brain regions including the amygdala and auditory cortex.
Researchers at the University of Iowa found that pigeons can learn and solve complex string tasks using computerized touch screens. The birds demonstrated accuracy rates of up to 90% in solving various string configurations.
Bees copy each other when looking for nectar by watching colour patterns and learning from others' behaviour. This simple logic helps them avoid bitter-tasting flowers and optimise their search for energy-rich nectar.
Researchers reveal that inhibitory interneuron circuits change their firing rates during map formation and flickering, playing a crucial role in learning. The study also shows that these changes are due to map-specific connections between pyramidal cells and interneurons.
Harvard researchers show that insulin-like peptides play a crucial role in regulating learning and memory by fine-tuning neuronal activity. The study reveals a bidirectional regulation of learning, with some peptides inhibiting learning while others facilitate it.
Research reveals that fly larvae fed alcohol-spiked food exhibit lasting changes in brain function, even after abstinence. This study provides insights into the neural mechanisms underlying ethanol dependence and its evolutionary roots.
A new study suggests that chronic exposure to bright light at night can lead to depression-like behaviors, including decreased interest in sugar and pleasure seeking, and impaired cognitive function. Treatment with Prozac restored the mice's healthy moods and learning abilities.
Researchers found that human math abilities are connected to a primitive sense of magnitude, while animals rely on instincts. The study showed that people with better math skills can distinguish between smaller numbers.
Researchers at Georgia Tech discovered that hopping robots can use a stutter jump to reduce energy consumption, with potential applications for future rescue and exploration robots. By analyzing nearly 20,000 jumps, the team found that taking a short hop before a big jump can allow robots to conserve power as much as ten-fold.
A new study reveals that male mice can learn to match the pitch of other males' ultrasonic serenades, exhibiting certain brain features similar to those found in humans and song-learning birds. The researchers also identified genes specific to vocal behavior in mouse brains, previously only found in songbirds and humans.
Scientists have found that mice can change the pitch of their ultrasonic vocalizations to match others in social exposure. This limited form of vocal learning suggests a capacity for learning not previously known in mice.
A new analysis found that over two-thirds of recently approved pesticide active ingredients have roots in natural substances. Scientists have discovered that biological and natural products-based pesticides are a rich source of new active ingredients.
New research shows bumblebees can learn where to find best food resources from both fellow bees and rival honeybees, challenging the idea that social learning is unique to same-species interactions.
New research by the University of Exeter suggests that our subconscious plays a significant role in how we respond to danger. Participants in the study showed a primitive response to fear-inducing stimuli, contradicting their conscious assessments of danger. This finding has implications for anxiety disorders and treatment.
Researchers at the University of Texas Health Science Center at Houston used Aplysia californica sea snails to test an innovative learning strategy that improved memory in the brain. The study identified optimal times for learning and showed a significant increase in memory when sessions were scheduled during these peak periods.
Researchers found that passive viewing of 2D images can lead to sustained changes in nerve cell connections, facilitating the expression of persistent hippocampal long-term depression. This discovery has implications for developing strategies to improve digital learning and reduce apathy towards traditional teaching methods.
A formal model of counting has been developed, revealing that children's number sense can be improved through proper training. The study suggests that children struggle to map numbers to words due to competing information in their learning process.
Researchers have found that brain nerve stimulation can accelerate learning in laboratory tests, leading to new understanding of how the brain learns and encodes new skills. The study also showed that large changes in the brain are meaningful and not merely coincidental.
A new study reveals that environmental enrichment enhances memory by forming new synapses and breaking down old ones, with the β-Adducin protein playing a critical role in this process.
Researchers have discovered distinct neuronal circuits within the central nucleus of the amygdala involved in acquisition and control of behavioral fear responses. The study found that specific inhibition cells play a key role in regulating fear behaviors.
A new study using brain imaging revealed how people learn from their competitors' successes and failures. The research found that players experienced neural activity in response to their competitor's unexpected failures, suggesting they learned to inhibit the actions leading to those failures.
Friesen's research found that her literacy dogs, Tango and Sparky, helped Grade 2 students overcome reading trepidation and develop a love for literature. The program improved children's reading behaviors, increased their confidence, and motivated them to read at home.
Research reveals leptin's role in reducing food intake by activating the hippocampus, a brain region controlling learning and memory. Impaired leptin signaling may compromise cognitive processes that inhibit excessive food consumption.
Researchers at MIT and Hebrew University identified specific classes of neurons in songbirds that match those in mammalian basal ganglia. The study suggests that the same brain circuits underlie learning in both species, with implications for human biology and disorders like Parkinson's disease.
An international team of scientists has decoded the genome of a songbird, the Australian zebra finch, to understand the genetic basis of vocal learning. The analysis suggests that hundreds of genes are activated by singing or hearing songs, including non-coding RNAs that control gene expression.
A study by Amdam et al. found a positive correlation between honeybee associative learning performance and metabolic stress resilience, independent of social factors. The relationship suggests that central nervous system function and metabolic biology can be associated, providing insights into how to reduce human health disparities.
Researchers found Ritalin enhances learning and focus by increasing brain plasticity and activity of dopamine receptors. The study showed Ritalin improves cognitive abilities in animals by strengthening communication between neurons.
A recent study published in the Journal of Experimental Psychology reveals that people underconfidently assess their learning abilities but overconfidently predict their memory performance. The researchers found that individuals failed to account for improved learning outcomes following additional study and testing.
Researchers found that sleep consolidates learning in starlings, a bird known for its vocal production and listening skills, mirroring human findings. The study replicates the sleep-dependent enhancement pattern observed in human studies, while also exploring the role of interference on learning.
A new study finds that consuming caffeinated 'alcohol-energy' drinks with alcohol may lead to impaired cognitive function and increased risk of disasters. Caffeine does not reverse the negative impact of alcohol on cognition, making people more likely to believe they are not intoxicated.
Neuroscientists have pinpointed molecular events in brain chemistry that trigger a shift from preference learning to aversion learning in infants. This transition is linked to changes in dopamine levels, which are manipulated through chemical means, advancing our understanding of attachment and development.
Researchers have developed transgenic songbirds to study the molecular secrets of vocal learning and neuronal replacement. The birds, which can be manipulated genetically, will enable scientists to explore these complex processes at the molecular level.
Researchers at MIT's Picower Institute for Learning and Memory found that rats use a mental instant replay of their actions to help them decide what to do next. The study reveals that these sequences also occur when the animals are awake and may help them consider future options.
Researchers at MIT's Picower Institute for Learning and Memory found that brain cells only change their responses after a successful behavior, but not after a failure. This study sheds light on the neural mechanisms underlying learning and memory, with implications for understanding how we learn and treating learning disorders.
A study at the University of Exeter found that grey squirrels learn more quickly when rewarded for recognizing a different pot, suggesting they prioritize gathering and storing nuts. The research also shows that squirrels are primed to recognize other squirrels as potential food thieves.
Researchers pinpointed the basolateral nucleus of the amygdala as the site where fear conditioning is encoded. The study sheds light on how fear memories are formed and may lead to new treatments for anxiety disorders.
The study, published in Science, suggests that neurons in the substantia nigra play a central role in reward-based learning. Participants who responded to unexpected financial rewards showed improved performance in probabilistic learning tasks.
A study by Ed Wasserman reveals that both baboons and pigeons can learn the relations between relations, a cognitive feat previously believed to be unique to humans. This discovery has implications for understanding animal intelligence and potentially informing methods for studying children with language impairments.
Scientists have visualized individual neurons in rat brains that are activated during associative learning tasks, providing direct evidence of convergent activation. This finding sheds light on how the brain changes as a result of experience and has implications for understanding plasticity.
A Yale researcher suggests that a competition between brain areas can explain why people forget tasks, such as dropping off dry cleaning. This 'dry cleaning effect' involves the interaction between the striatum and hippocampus, which may be relevant to understanding mental illnesses like obsessive-compulsive disorder.
Stanford researchers found that a functioning circadian system is crucial to Siberian hamsters' ability to remember their environment. The study suggests that the circadian clock controls the daily cycle of sleep and wakefulness by inhibiting brain activity, which affects learning and memory.
A study by Mathias and Helena Osvath found that chimpanzees and orangutans can plan ahead, overriding immediate needs in favor of future rewards. The apes demonstrated self-control and pre-experiencing a future event, visualizing the use of tools to achieve goals.
Tests on ground squirrels found that moderate cortisol levels improve learning, while low or high levels impede it. The study suggests a link between cortisol and learning, which could inform understanding of human cognitive development.
A new technique allows researchers to identify the specific neural connections and molecular tags that sustain a particular fear memory in mice. The study reveals how proteins called AMPA receptors strengthen memories by becoming part of the synapses encoding them.
Researchers at the Salk Institute found that newborn brain cells play a crucial role in spatial memory and learning. Genetically engineered mice with shut-down neurogenesis showed learning and memory deficits, but not complete loss of function.
Researchers at MIT created a method called DICE-K, which allows them to see the effect of blocking and unblocking a single neural circuit in living animals. The study suggests that the hippocampal neural pathway plays a crucial role in quickly forming memories.
Researchers discovered that cockroaches learn better at night and retain memories for several days, while morning training leads to complete memory loss. This study provides new insights into the interaction between circadian clocks and learning in insects.
A new study reveals that female birds of two migrant flycatcher species can acquire a novel preference for nesting sites based on the apparent attraction of competing resident tits. This finding suggests that individual animals use information and make decisions, even from other species.
A new study shows that human infants are able to recognize abstract rules in language as early as seven months old, with a stronger drive to understand speech patterns. Infants can generalize learned rules from speech to non-linguistic stimuli, suggesting an innate ability to learn language.
Researchers at UT Southwestern Medical Center found that mice genetically engineered to lack a single enzyme in their brains are more adept at learning and quicker to adapt to changing environments. This discovery may serve as a target for treating disorders such as post-traumatic stress disorder, Alzheimer's disease, and drug addiction.
Researchers discovered hundreds of genes that bind to CREB and zif268, a crucial step towards understanding neural plasticity. The study's online database provides valuable insights into the molecular mechanisms behind learning and memory.
Research by Jorgen Johnsson and Fredrik Sundström found that naive fish benefited from the skills of pre-trained group mates despite having outdated knowledge on predation risk. Social learning improved foraging success, suggesting it can be a beneficial strategy even in uncertain environments.
A study found female budgerigars pair with males that sound like them, receiving more assistance during nesting. Males that mimic similar calls are also less aggressive and provide better support to females.
Researchers found that connecting sounds with rewards triggers significant changes in the brain's sensory cortex, enabling better behavioral responses. This study has wide implications for learning and cognitive development, particularly in individuals with language learning impairments like dyslexia.
Researchers used a genetic tool to activate specific neurons in fruit flies, revealing that two subsets of neurons are responsible for assigning positive or negative values to stimuli. This discovery advances our understanding of how animals learn to associate cues with experiences and has implications for more complex mammalian brains.
MIT researchers confirm the existence of long-term potentiation (LTP) in the hippocampus when learning occurs. Using advanced techniques, they found that certain key connections among neurons strengthen with learning, providing conclusive evidence for a fundamental learning mechanism.
Researchers discovered that brain neurons combine economic value and spatial information to control decision-making behaviors, contradicting the previous pure economic view. This study has implications for understanding human disorders such as addiction, depression, and obsessive-compulsive disorder.
New neurons sprout robust, persistent connections after long-term changes in sensory experience, enabling efficient adaptation and learning. The discovery sheds light on the biological mechanisms of procedural learning and has implications for understanding implicit memory.
Researchers found that bats quickly learned new foraging behaviors, such as associating frog calls with palatable prey, through social learning. This study suggests that cultural transmission plays a role in the flexibility of bat foraging behavior, enabling them to adapt to changing environments.
Researchers found that zebra finch males prefer females with beaks more extremely colored than their mothers', demonstrating a 'peak shift' effect. This suggests that sexual imprinting drives the evolution of skewed mating preferences and exaggerated traits in birds.