UD Prof. Alon Hafri studies the connection between language and visual perception
Credit: Jeffrey C. Chase Seeing and speaking are two of the most complex processes happening in the human mind. Through his research, UD’s Alon Hafri seeks to understand how they work and how those two systems share information. « The Link Between Language and Vision
Newswise — For a translator to turn one language (say, English) into another (say, Greek), she has to be able to understand both languages and what common meanings they point to, because English is not very similar to Greek.
It turns out that a similar task must be carried out within our own minds when translating visual information into linguistic information — a task Alon Hafri, an assistant professor in the Department of Linguistics and Cognitive Science at the University of Delaware and director of the Perception and Language (PAL) Lab, is trying to better understand. His research is on the connection between language and visual perception, or, in other words, between what we say and what we see.
Understanding these two activities — seeing and speaking — may at first seem trivial, Hafri said. Indeed, we’re so good at these things that we do them without thinking. But seeing and speaking are some of the most complex processes that the human mind carries out. Hafri’s goal is to understand how they work and how those two systems share information.
Hafri gives a seemingly simple example: a cat on a mat. If we saw a cat on a mat, we’d have no problem describing the scene. Or if someone said, “Look, a cat on a mat,” we’d easily be able to identify it out in the world. Yet at first glance, an image of a cat on a mat and the sentence “a cat on a mat” have nothing in common: the image has colors, edges, shapes and locations, while the sentence has sounds, words, phrases and such.
“If you think about the problem that the mind has to solve when you’re going from a visual scene to a sentence that you produce about it, there’s nothing in common really between words in a certain order and a visual image,” Hafri said. “The kind of information that they start with is very different. Something I’m really interested in is how visual information gets translated — sort of like an English-to-Greek translator would do — into a format that language can use, such that we can talk about what we see. And vice versa, so that we can recognize the things people are talking about in the world. The kind of questions I ask are, well, how does that happen? What is the translation process?”
In a recent project, Hafri asked research participants whether the notion of symmetry exists not only in vision (such as in a butterfly’s wings), but also in language. He uses tasks that force people to make judgments of how a linguistic and a visual stimulus relate, presenting images of shapes that are symmetric and non-symmetric and asking people to choose from a set of words the one that best describes them. Hafri gives the words “marry” and “adopt” as examples. “Marry” has notions of symmetry as a part of its meaning (if Bill marries John, then John marries Bill), while “adopt” does not (if Bill adopts John, John doesn’t necessarily adopt Bill).
Despite the fact that most participants said they felt they were picking images and shapes at random, Hafri found that people were quite sensitive to the connection between visual symmetry and language for symmetry, such that they associated symmetrical images with words that have symmetrical meaning. (You can try out the tasks for yourself here.)
“There seems to be some deep way in which symmetry in vision and symmetry and language are connected,” Hafri said. “I think it’s because there’s some internal language or internal code — you can think of it almost like your mental computer code — that has this property of symmetry that both language and vision link to. So when you see a visual image or an event that’s symmetrical, it somehow gives rise to this abstract mental representation of symmetry — this internal language of symmetry.”
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Hafri’s research will help cognitive scientists to better understand the internal code — or internal language — of the human mind.
“Language can be studied on its own, but at some level, it has to connect to other areas of the mind,” Hafri said. “For [vision and language] to connect, it has to happen through some internal code, because a visual image and words and sentences are just so different, in so many ways. For that reason, if you can find the points at which they make contact, you can get a sense of what that internal language or that internal code is like in a way that you couldn’t otherwise.”
Each state in the U.S. has its own child abuse laws, and all states, tribes and territories aim to protect children from abuse. But all state laws also allow parents to hit their children if it does not leave an injury or a mark.
A typical example is Oklahoma’s definition of child abuse and neglect. It includes an exception that permits parents to use ordinary force as a means of discipline, including spanking, using an implement like a switch or a paddle. However, leaving evidence of hitting, such as welts, bruises, swelling or lacerations, is illegal and considered child abuse in all states.
Parental spanking of children is considered unique from other physical violence because of the relational context and the purpose. Laws entitle parents to hit their children for the purpose of teaching a lesson or punishing them to improve behavior. Children are the only individuals in society who can be hit by another person and the law does not regard it as assault.
Spanking’s impact on a child is unfortunately similar to abusive hitting. Spanking has been labeled as an “Adverse Childhood Experience,” or ACE. These are events that cause poor health outcomes over the span of one’s life.
The practice of spanking also affects parents. Acceptance of the physical discipline of spanking puts parents at risk for the escalation of physical punishment that leads to abuse.
Parents who spank their child have the potential to abuse them and be caught in a legal and child protection system that aims to protect children from harm. It is unclear what triggers a parent to cross over from discipline into abuse. Research shows that spanking at a young age, such as a 1-year-old, increases the chance of involvement by Child Protective Services by 33%.
Some school districts require permission from parents to allow disciplinary paddling in school, while others do not require any communication. State law does not assure agreement between parents and school districts on what offenses warrant a paddling. Parents may feel they have no alternative but to keep their child in school, or fear reprisal from school administrators. Some students are old enough to denounce the punishment themselves.
In this school district, physical punishment is used only when parents give written permission.
Is spanking considered the same as hitting?
The term spank conceals the concept of hitting and is so commonplace it goes unquestioned, despite the fact that it is a grown adult hitting a person much smaller than them. The concept is further concealed because hitting a child’s bottom hides any injuries that may occur.
Types of hitting that are categorized as spanking have narrowed over the years but still persist. Some parents still use implements such as tree switches, wooden spoons, shoes or paddles to “spank” children, raising the chances for abuse.
Most spanking ends by the age of 12, partly because children this age are able to fight back. When a child turns 18, parental hitting becomes the same as hitting any other adult, a form of domestic violence or assault throughout the U.S.
There is a lack of a consistent understanding of what constitutes a spanking. The definition of spanking is unique to each family. The number of hits, clothed or not, or using an implement, all reflect geographical or familial differences in understanding what a spanking is.
How do US adults view spanking?
People in the United States generally accept spanking as part of raising children: 56% of U.S. adults strongly agree or agree that “… it is sometimes necessary to discipline a child with a good, hard spanking.” This view has been slowly changing since 1986, when 83% of adults agreed with that statement.
The laws worldwide that protect children from being hit usually begin by disallowing nonparental adults to hit children. This is happening in the U.S. too, where 31 states have banned paddling in schools.
At a national level, efforts have been made to end physical punishment in schools. However, 19 states still allow spanking of children in public schools, which was upheld by a 1977 Supreme Court case.
With the slow but steady drop of parents who believe that sometimes children need a good hard spanking, as well as the ban of paddling in schools in 31 states, one could argue that the U.S. is moving toward a reduction in spanking.
What does research say about spanking?
Spanking’s negative influence on children’s behavior has been documented for decades. Spanking seems to work in the moment when it comes to changing or stopping the immediate behavior, but the negative effects are hidden in the short term and occur later in the child’s life. Yet because the spanking seemed to work at the time, the parent doesn’t connect the continued bad behavior of the child to the spanking.
An abundance of research shows that spanking causes increased negative behaviors in childhood. Spanking lowers executive functioning for children, increases dating violence as teenagers and even increases struggles with mental health and substance abuse in adulthood. Spanking does not teach new or healthy behaviors, and is a stress-inducing event for the child and the adult hitting them.
No studies have shown positive long-term benefits from spanking. Because of the long-standing and expansive research findings showing a range of harm from spanking and the increased association with child abuse, the American Psychological Association recommends that parents should never spank their children.
What are some resources for parents?
Consider these questions when choosing a discipline method for your child:
Is the expectation of your child developmentally accurate? One of the most common reasons parents spank is because they are expecting a behavior the child is not developmentally able to execute.
Can the discipline you choose grow with your child? Nearly all spanking ends by age 12, when kids are big enough to fight back. Choose discipline methods you can use over the long term, such as additional chores, apologies, difficult conversations and others that can grow with your child.
Might there be another explanation for your child’s behavior? Difficulty of understanding, fear or miscommunication? Think of your child as a learner and use a growth mindset to help your child learn from their life experiences.
Parents are the leaders of their families. Good leaders show strength in nonthreatening ways, listen to others and explain their decisions. Don’t spoil your kids. But being firm does not have to include hitting.
Is spanking children good for parents?
Doubtful. Parents who hit their kids may be unaware that it influences their frustration in other relationships. Expressing aggression recharges an angry and short-tempered internal battery that transfers into other parts of the adults’ lives.
Practicing calm when with your children will help you be calmer at work and in your other relationships. Listening to and speaking with a child about challenges, even from a very early age, is the best way to make it part of your relationship for the rest of your life.
Choose a method that allows you to grow. Parents matter too.Christina Erickson, Associate Dean in the College of Nursing and Professional Disciplines, University of North Dakota
This article is republished from The Conversation under a Creative Commons license. Read the original article.
The European Space Agency’s astronaut cohort includes a parastronaut, as part of a feasibility project.
AP Photo/Francois MoriJesse Rhoades, University of North Dakota and Rebecca Rhoades, University of North Dakota
Humans will likely set foot on the Moon again in the coming decade. While many stories in this new chapter of lunar exploration will be reminiscent of the Apollo missions 50 years ago, others may look quite different.
For instance, the European Space Agency is currently working to make space travel more accessible for people of a wide range of backgrounds and abilities. In this new era, the first footprint on the Moon could possibly be made by a prosthetic limb.
NASA plans to return humans to the lunar surface in the coming decade.NASA Goddard
Historically, and even still today, astronauts selected to fly to space have had to fit a long list of physical requirements. However, many professionals in the field are beginning to acknowledge that these requirements stem from outdated assumptions.
Some research, including studies by our multidisciplinary team of aerospace and biomechanics researchers, has begun to explore the possibilities for people with physical disabilities to venture into space, visit the Moon and eventually travel to Mars.
Current research
NASA has previously funded and is currently funding research on restraints and mobility aids to help everyone, regardless of their ability, move around in the crew cabin.
Additionally, NASA has research programs to develop functional aids for individuals with disabilities in current U.S. spacecraft. A functional aid is any device that improves someone’s independence, mobility or daily living tasks by compensating for their physical limitations.
The European Space Agency, or ESA, launched its Parastronaut Feasibility Project in 2022 to assess ways to include individuals with disabilities in human spaceflight. A parastronaut is an astronaut with a physical disability who has been selected and trained to participate in space missions.
At the University of North Dakota, we conducted one of the first studies focused on parastronauts. This research examined how individuals with disabilities get into and get out of two current U.S. spacecraft designed to carry crew. The first was NASA’s Orion capsule, designed by Lockheed Martin, and the second was Boeing’s CST 100 Starliner.
Alongside our colleagues Pablo De León, Keith Crisman, Komal Mangle and Kavya Manyapu, we uncovered valuable insights into the accessibility challenges future parastronauts may face.
Our research indicated that individuals with physical disabilities are nearly as nimble in modern U.S. spacecraft as nondisabled individuals. This work focused on testing individuals who have experienced leg amputations. Now we are looking ahead to solutions that could benefit astronauts of all abilities.
Safety and inclusion
John McFall is the ESA’s first parastronaut. At the age of 19, Mcfall lost his right leg just above the knee from a motorcycle accident. Although McFall has not been assigned to a mission yet, he is the first person with a physical disability to be medically certified for an ISS mission.
John McFall stands by a mock-up of the SpaceX Dragon crew capsule.SpaceX, CC BY-NC-SA
Astronaut selection criteria currently prioritize peak physical fitness, with the goal of having multiple crew members who can do the same physical tasks. Integrating parastronauts into the crew has required balancing mission security and accessibility.
However, with advancements in technology, spacecraft design and assistive tools, inclusion no longer needs to come at the expense of safety. These technologies are still in their infancy, but research and efforts like the ESA’s program will help improve them.
Design and development of spacecraft can cost billions of dollars. Simple adaptations, such as adding handholds onto the walls in a spacecraft, can provide vital assistance. However, adding handles to existing spacecraft will be costly.
Functional aids that don’t alter the spacecraft itself – such as accessories carried by each astronaut – could be another way forward. For example, adding Velcro to certain spots in the spacecraft or on prosthetic limbs could improve a parastronaut’s traction and help them anchor to the spacecraft’s surfaces.
Engineers could design new prosthetics made for particular space environments, such as zero or partial gravity, or even tailored to specific spacecraft. This approach is kind of like designing specialized prosthetics for rock climbing, running or other sports.
Accessibility can help everyone
Future space exploration, particularly missions to the Moon and Mars that will take weeks, months and even years, may prompt new standards for astronaut fitness. During these long missions, astronauts could get injured, causing what can be considered incidental disability.
An astronaut with an incidental disability begins a mission without a recognized disability but acquires one from a mission mishap. An astronaut suffering a broken arm or a traumatic brain injury during a mission would have a persistent impairment.
On longer missions, astronauts may need to troubleshoot issues on their own.NASA
During long-duration missions, an astronaut crew will be too far away to receive outside medical help – they’ll have to deal with these issues on their own.
Considering disability during mission planning goes beyond inclusion. It makes the mission safer for all astronauts by preparing them for anything that could go wrong. Any astronaut could suffer an incidental disability during their journey.
Safety and inclusion in spaceflight don’t need to be at odds. Instead, agencies can reengineer systems and training processes to ensure that more people can safely participate in space missions. By addressing safety concerns through technology, innovative design and mission planning, the space industry can have inclusive and successful missions.Jesse Rhoades, Professor of Education, Heath & Behavior, University of North Dakota and Rebecca Rhoades, Researcher in Education, Health & Behavior, University of North Dakota
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Phoenix Sky Harbor International Airport, a major transportation hub in Arizona, is set to undergo significant improvements with a new construction project at Terminal 3. According to AZ Family, the work is officially commencing this month on a project that will enhance the airport’s infrastructure, making it more accommodating for travelers.
Expansion at Sky Harbor
The upcoming expansion, which boasts a budget of $326 million, will introduce a new concourse on the north side of Terminal 3. This new addition is designed to increase the terminal’s capacity by adding six new passenger gates, bringing the total to 26 gates. The construction will encompass a vast 173,000 square feet, ultimately providing more flight options and enhanced facilities for travelers.
As reported by AZ Central, the expansion is much-needed, given that Terminal 3 is the oldest terminal at Sky Harbor. McCarthy Building Cos. Inc. has been entrusted with the construction, and they are committed to creating an exceptional experience for passengers. Thomas Assante, McCarthy’s senior project director, stated, “Every portion of the new Terminal 3 concourse will provide an exceptional experience for Sky Harbor passengers.” Notably, McCarthy has experience with airport projects, having recently completed a five-gate concourse at Mesa Gateway Airport, which opened in February 2024.
In addition to expanding gate capacity, the new Terminal 3 concourse plans to feature improvements beyond functionality. Travelers can look forward to new dining options, including three food and beverage spaces, as well as two retail spaces, alongside a passenger lounge. Greg Roybal, an airport spokesman, has confirmed these plans, emphasizing the project’s focus on improving the overall passenger experience.
The anticipated completion date for the new concourse is set for 2027. Once finished, this expansion will not only bolster the terminal’s capabilities but also enhance the amenities available to travelers. The airlines currently operating out of Terminal 3 include Delta, United, Frontier, and Alaska Airlines, among others.
As this construction project unfolds, we will keep readers updated with the latest developments and milestones. With these enhancements on the horizon, Sky Harbor Airport is poised to deliver an even better travel experience for passengers in the coming years. Stay tuned!
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