Brain Scans and Child Neglect: What the Famous Image Really Shows

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Brain Scans and Child Neglect: What the Famous Comparison Shows

The famous side-by-side image shows two CT scans of three-year-old children: on the left a typical brain, on the right a much smaller brain from a child who suffered extreme neglect. It is real, and it does illustrate that severe early deprivation can harm brain growth. But it is an extreme, unusual case, the neglected child was almost certainly also malnourished, and the picture does not prove that ordinary differences in a mother’s affection change the size of a child’s brain.

The image has been shared for over a decade under headlines claiming it shows “the impact love has on a child’s brain.” Here is where it came from, what science actually says about neglect and brain development, and what helps children recover.

Where the two scans come from

The pictures were published by Bruce Perry, an American child psychiatrist and neuroscientist who has written widely on trauma, in an article about the effects of child abuse. They were taken from an unpublished study abstract on childhood neglect, not from a large peer-reviewed trial.

The scan on the right came from a child whose head was smaller than that of 97% of children of the same age, close to the threshold doctors use for microcephaly. The neuroscience blog Mind Hacks, reviewing the image in 2012, pointed out that it is not a typical example of what neglect does, and that the underlying study did not control for malnutrition or for drug exposure before birth. Neither scan carries a scale bar, so even the visual comparison is less precise than it looks.

The image spread widely after a British newspaper used it in a story arguing that a mother’s care determines the size of a child’s brain. Critics noted that the story overstated the science, including a false claim that most brain cells form after birth. In fact, babies are born with nearly all the neurons they will have; what grows rapidly afterwards are the connections between them.

What the image does show, and what it does not

It is fair to say the picture shows something important: a child who received almost no care, stimulation or nutrition in the earliest years can end up with a visibly underdeveloped brain. That is consistent with decades of research on children raised in extreme deprivation.

What it does not show is that a child whose parent is busy, tired or less openly affectionate will have a “shrunken” brain. It also cannot tell us how intelligent either child will become, whether one will develop empathy or what their adult life will look like. Viral versions of the story predicted that the neglected child would turn to drugs, crime and unemployment; no brain scan can make such forecasts about an individual.

The framing also blamed mothers specifically. That echoes the long-discredited “refrigerator mother” theory, which once wrongly blamed autism on cold parenting. Babies need responsive care from someone, whether a mother, father, grandparent, foster carer or adoptive parent.

What research says about early care and the brain

The real evidence is more nuanced but still powerful.

Brain Scans and Child Neglect: What the Famous Comparison Shows

A cut-away MRI illustration of the head. Scans like this let researchers measure individual brain structures, such as the hippocampus, rather than judging overall size by eye.

Serve and return

Researchers at Harvard’s Center on the Developing Child describe a process they call “serve and return.” A baby babbles, points or cries, and an adult answers with eye contact, words or a cuddle. Each of these back-and-forth exchanges helps build and strengthen the brain connections that support language and social skills. When the responses rarely come, those circuits get less practice.

Nurturing and the hippocampus

A 2012 study led by child psychiatrist Joan Luby at Washington University in St. Louis, published in PNAS, followed 92 children. As preschoolers they were filmed with a parent, usually the mother, during a frustrating waiting task, and trained raters scored how supportive the parent was. Years later, at ages 7 to 10, brain scans showed that among children without depression, those with more supportive parents had a hippocampus almost 10% larger. The hippocampus is involved in memory, learning and handling stress. The researchers stressed that the same is likely true of any primary caregiver, and they noted limits: families were observed only once, and not at home.

Children raised in institutions

The strongest evidence comes from the Bucharest Early Intervention Project, which began in 2001 in Romania. It enrolled 136 young children living in state institutions and randomly assigned half to high-quality foster families. Children placed in families showed higher IQ scores and healthier patterns of brain electrical activity than those who stayed in institutions. Earlier placement tended to bring bigger gains, which is why many experts argue for moving neglected infants into family care as soon as possible.

How serious neglect can affect development

Child-welfare agencies and researchers describe a range of possible effects when neglect is severe and long-lasting. These are risks, not certainties, and they vary widely from child to child:

  • Delays in language, thinking and school readiness.
  • Difficulty forming secure attachments and trusting adults.
  • Trouble regulating emotions and handling stress, linked to changes in the brain’s stress-response systems.
  • Higher rates of anxiety, depression and attention problems later in life.
  • Physical health problems, especially when neglect includes poor nutrition or missed medical care.

Neglect is the most common form of child maltreatment in many countries, yet it gets less attention than abuse because there is often no single dramatic event. It is the absence of something, day after day.

Recovery is possible

The most hopeful message from the research is that the brain stays adaptable. In the Bucharest study and in follow-ups of adopted children, many who moved into caring homes made remarkable progress, particularly when they were placed early. Some effects can linger, but children are not simply “ruined” by a bad start.

Programmes that support families early, such as home visits by nurses, parenting coaching and help with poverty, housing and mental health, can break cycles in which parents who were neglected themselves struggle to care for their own children. Supporting parents is usually more effective than shaming them.

Practical takeaways for parents and carers

  • Respond more often than not. No parent answers every cry or question perfectly. What matters is a reliable overall pattern of attention and warmth.
  • Talk, read and play. Narrating your day, sharing picture books and simple games are all serve-and-return in action.
  • Look after yourself. Exhaustion, depression and isolation make responsive care harder. Asking for help is part of good parenting.
  • Get advice if you are worried. If you have concerns about a child’s development, talk to a doctor or health visitor. If you think a child is being neglected, contact your local child-protection service.

The scans are a striking reminder that children need care to thrive. Read correctly, they argue for supporting families, not for blaming them. For more on how feelings and the body connect, see our article on research mapping human emotions.

Sources: Mind Hacks: A brief reheating of the refrigerator mother (2012); Washington University in St. Louis: Mom’s love good for child’s brain (2012); Harvard Center on the Developing Child: Serve and Return; Psychiatric News: Bucharest Early Intervention Project; Flickr (MRI illustration image credit).

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COMMENTS

BLOGGER: 1
  1. UnknownApril 1, 2017 at 7:26 AM

    No mention of fathers here - only mothers. It's almost as if they believe that only the mother's care (or lack thereof) is important.

    ReplyDelete