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Child Development

Little Minds Big Learning: 15-Month-Old Infants Learn New Words for Objects from Conversations Alone

A new study by developmental scientists offers the first evidence that infants as young as 15 months can identify an object they have learned about from listening to language — even if the object remains hidden.

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Researchers at Northwestern University and Harvard University have made a groundbreaking discovery about the way infants learn new words for objects. A study led by Sandra Waxman, senior author and Louis W. Menk Professor of Psychology, found that 15-month-old babies can identify an object they’ve learned about from listening to language, even if it’s not present in front of them.

Imagine a baby playing with blocks on the floor while listening to parents talk about kumquats, a novel fruit. Can the baby form an initial representation or “gist” about what kumquat means? The researchers sought to answer this question and more.

The study involved 134 infants, divided into two age groups: 12 months and 15 months. In a three-part task, babies were presented with words paired with images of familiar objects (e.g., apple, banana). Then, they heard a new word while an image of a novel object (e.g., kumquat) was hidden from their view.

The results showed that 15-month-olds looked longer at the novel fruit than the novel artifact, indicating that they had used context clues to identify which object was most likely the one referred to by the new word. This is significant because it suggests that even babies who are just beginning to say their first words can learn from language and form mental representations of objects and events never witnessed directly.

Waxman explained, “We’re asking whether infants, too, can use the conversational contexts in which a word occurs to begin to learn their meaning.” The study provides new insight into the developmental origins of the human capacity to learn about things that are not perceptually present.

The researchers’ findings highlight the power of language in infants’ daily lives. Babies often hear words that they don’t yet understand, and that they cannot “map” immediately to an object or event. However, this study shows that by 15 months, infants can spontaneously use linguistic context to build a gist of a new word’s meaning that will support subsequent learning.

As Waxman noted, “When we hear new words, like ‘kumquat’ in conversation when there are no kumquats around, we don’t waste the opportunity to home in its meaning. We now know this is also true about tiny babies.”

Child Development

Music Therapy Breakthrough for Brain-Injured Children: A New Tool for Assessing Consciousness

Music could provide a breakthrough in assessing consciousness levels in children who have suffered significant brain injuries, according to new research.

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The article has been rewritten to improve clarity, structure, and style, making it understandable to the general public. Here is the rewritten content:

Music therapy has long been used to help people recover from physical and emotional trauma, but now it may also be a breakthrough in assessing consciousness levels in children who have suffered significant brain injuries. Researchers at Anglia Ruskin University, The Children’s Trust, and Temple University have developed a new tool called MuSICCA (Music therapy Sensory Instrument for Cognition, Consciousness, and Awareness) to help doctors and caregivers determine the level of consciousness in children aged 2-18.

Currently, there is a lack of tools to assess consciousness in children, making it difficult for medical staff to provide proper care. As children grow and develop, their brains undergo significant changes that can make it even harder to determine their level of awareness. MuSICCA aims to change this by using specially selected music to stimulate the patient and encourage them to respond.

A qualified music therapist performs live music stimulation for the patient, manipulating different aspects of the music depending on how they respond. The music therapist observes the child’s behaviors and records these observations against a set of scales, which then produces a diagnosis of the level of consciousness.

In a recent study, researchers invited participants including music therapists, family members of children affected by brain injuries, and healthcare professionals to evaluate MuSICCA. The results were overwhelmingly positive, with 85% of participants strongly agreeing that MuSICCA is an assessment of consciousness and awareness, and 85% also strongly agreeing that it is suitable for use with children and young people.

The lead author of the study, Dr. Jonathan Pool, said: “Children with disorders of consciousness are often almost completely dependent on others to meet their needs. Their therapists, nurses, and caregivers must interpret very subtle behaviors to help them understand their needs. MuSICCA allows us to conduct a rigorous assessment of the patient’s response to various musical stimuli, giving us a picture of their level of consciousness and the strengths and weaknesses of their responses.”

The researchers believe that MuSICCA has the potential to revolutionize the way we assess consciousness in children with brain injuries, providing a more accurate and reliable method for doctors and caregivers to determine the best course of treatment.

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Child Development

Smart Home Surveillance Threatens Domestic Workers’ Safety and Privacy

The growing use of smart home devices is undermining the privacy and safety of domestic workers. New research reveals how surveillance technologies reinforce a sense of constant monitoring and control by domestic workers’ employers, increasing their vulnerability and impacting their mental wellbeing.

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Smart home technologies are increasingly used worldwide to monitor and control various aspects of daily life. However, a growing concern has emerged regarding the impact of these devices on domestic workers, who often find themselves under constant surveillance.

Researchers from King’s College London have conducted a study that reveals the unsettling truth about smart home devices being used to monitor domestic workers in China. The study, which involved interviews with 26 domestic workers and five recruitment agencies, highlights how employers are using these technologies to exert control over their employees, undermining their privacy and safety.

The researchers found that many domestic workers felt like they were under constant observation, with cameras and sensors installed in every room of the smart home. Some reported not being informed about the presence of cameras, while others discovered them hidden in bookshelves or disguised as other devices.

The constant feeling of being watched had a profound impact on the mental wellbeing of these domestic workers. Many felt uneasy, anxious, and even trapped in their own homes. The researchers concluded that this level of surveillance amounts to mental abuse, undermining trust and affecting workplace interactions.

Furthermore, the study revealed how smart home technologies exacerbate existing power imbalances between workers and employers. Employers can use these devices to monitor workers’ performance, track their movements, and even make decisions about their employment based on data collected from the devices.

The researchers highlighted that while many domestic workers recognized the need for safety, especially when caring for babies, the absence of clear communication from employers about the purpose of monitoring sparked distrust and discomfort. They recommended that domestic worker agencies integrate privacy education into training programmes for workers to understand their rights and establish transparent communication and contractual agreements regarding surveillance practices.

The study was conducted by researchers from King’s College London, along with collaborators from the University of St Andrews and the China Academy of Art, Hangzhou. The findings suggest that this issue is not unique to China but may be affecting migrant domestic workers worldwide.

In conclusion, the use of smart home technologies to monitor domestic workers raises significant concerns about their safety and privacy. The researchers’ recommendations provide a starting point for policymakers and agencies to address these challenges and ensure that domestic workers are protected from exploitation. As technology continues to advance, it is crucial that we prioritize human rights and dignity in the development and implementation of smart home devices.

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Behavior

“Unlocking Mental Well-being: Everyday Behaviors That Boost Happiness”

Regular chats with friends, time spent in nature and mentally engaging activities are strongly linked to better mental health, according to new research that highlights the power of simple, everyday behaviors to improve well-being.

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Unlocking Mental Well-being: Everyday Behaviors That Boost Happiness

Research from Curtin University has revealed that everyday actions like chatting with friends, spending time in nature, and engaging in mentally stimulating activities can significantly improve mental well-being. The study surveyed over 600 Western Australian adults and found that those who practiced these behaviors on a daily basis scored higher on a standard mental well-being scale than those who did so less frequently.

The research highlighted the importance of social connections, physical activity, spirituality, and helping others in maintaining good mental health. Participants who chatted with friends every day scored 10 points higher on average, while spending time in nature daily was associated with a five-point increase. Other behaviors linked to improved mental well-being included frequent catch-ups with friends, physical activity, practicing spirituality, and engaging in mentally stimulating activities like crosswords or learning a new language.

Lead author Professor Christina Pollard emphasized that these findings offer clear evidence of the power of simple, low-cost actions in promoting good mental health and well-being. “These aren’t expensive programs or clinical interventions,” she said. “They’re behaviors that are already part of many people’s lives and can be easily encouraged through public health messaging.”

The study also evaluated 15 behaviors promoted by the Act Belong Commit campaign and found that mental well-being increased consistently with the frequency of participation in these behaviors. Awareness of the campaign was high, with 86 per cent of participants recognizing it, and nearly all agreed that mental health should be prioritized alongside physical health.

Despite being conducted during the COVID-19 pandemic, when social interactions were limited, 93 per cent of respondents reported no psychological distress, and average mental well-being scores were comparable to international pre-pandemic norms. Professor Pollard noted that this research provides a strong case for long-term investment in population-wide mental health promotion campaigns that go beyond awareness and empower people to take meaningful action.

“This research confirms that when people are supported and encouraged to engage in mentally healthy behaviors, the benefits can be felt across the community,” she said. “It’s about prevention, not just treatment – helping people stay mentally well before they reach crisis point.”

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