Toronto, ONT, Canada. What did we know and when did we know it? A study by York University researchers reveals that infants as young as six months old know when we're "playing" them — and they don't like it.

Researchers in the York University Centre for Infancy Studies examined the reactions of six-and nine-month-old babies to a structured game in which an experimenter was either unable or unwilling to share a toy. The babies detected and were calmly accepting when an experimenter was unable to share for reasons beyond her control, but averted their gazes and became agitated when it was clear she wouldn't share.

"Babies can tell if you're teasing or being manipulative, and they let you know it," says study lead author Heidi Marsh, a PhD student who worked under the direction of psychology professor Maria Legerstee, head of the Centre for Infancy Studies in York's Faculty of Health. The study findings appear in the journal Infancy.

Remembering Who We Are

Early self-knowledge, universal across all class and social distinctions, forms an intrinsic indicator of the transsexual birth condition and appears to occur randomly in all human populations. It crosses national boundaries and religious training.

Moreover, modern scientific assessments indicate that the birth condition has no connection with sexual orientation.

A wide variety of adults born with a misalignment of their innate neurobiological properties and anatomical sex have early and vivid memories of self-awareness of their birth condition.

The reports can mix very early and direct recollection ("I have always known I'm a ...") with memories of memories ("I remember that I recalled ...").

Arbitrary social constructions — such as class, race, and social status — have no bearing on the incidence rate, nor do other characteristics (such as intelligence or physical dimensions).

Significant research effort in recent years deals with the means used by children to organize and report on their experiences, and measures to determine their veracity.

Mounting evidence shows that research efforts using adult standards to assess the reports of children are in error.

The finding that affective measures are stronger for younger infants may be related to their level of independence. As infants become more independent, they decrease affective behavior such as crying, and increase physical actions such as active resistance.Other studies have concluded that this ability doesn't develop until nine months of age. However, that research used measures which Marsh proposes are unsuited to younger infants.

"A six-month-old as compared to a nine-month-old has different ways of expressing what they know," says Marsh. "The innovative aspect of this research is that we used measures that are consistent with a six-month-old's everyday behaviour in order to understand what they comprehend."

"We recorded their social responses, such as sadness, gaze aversions, smiles and vocalizations, in addition to more physical responses such as reaching and banging," she says.

The study looked at 40 infants, evenly divided between genders. Infants sat in their mothers' laps at a table, with the experimenter seated across from them. In half the test trials, the toy was not passed to the infant because the experimenter was unwilling to share it, and in the others, it was not passed because the experimenter was trying, but unable, to pass it.

Infants were administered three tasks: block, mock, and play. Each task differed with respect to the toy that was shared, and the nature of the sharing game, but in all tasks there was a corresponding unwilling and unable condition.

For instance, in the mock task, a rattle was held out toward the infant, and then pulled back teasingly (unwilling condition), and a ball was "accidentally" dropped and rolled back to the experimenter (unable condition).

The visible movements of both the experimenter and the toy were matched across conditions, as was the outcome that the toy was not shared. This meant that the main difference between conditions was the experimenter's intent.

"We also used the experimenter's facial expressions to convey unwillingness or inability, as they're important cues for babies to understand others' goals," says Marsh.

Infants at both ages averted their gazes during unwilling trials. They also reached more in the unable conditions, suggesting they understood there was a problem and were trying to elicit the adult's assistance. The nine-month-olds banged their arms in the unwilling conditions, whereas the six-month-olds showed more negative affect, such as frowns, in those trials, and positive affective behaviours in unable conditions.

"Our finding that affective measures are stronger for younger infants may be related to their level of independence," Marsh says. "As infants become more independent, they decrease affective behavior such as crying, and increase physical actions such as actively resisting. These distinctions point to the importance of studying infants' social and cognitive abilities not only over time, but also in paradigms that capture the spectrum of their social behaviours."

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TS-Si is dedicated to the acceptance, medical treatment, and legal protection of individuals correcting the misalignment of their brains and their anatomical sex, while supporting their transition into society as hormonally reconstituted and surgically corrected citizens.

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