The mind stays partially tethered to the present moment instead of drifting away.
Por gerações, a imagem de um estudante rabiscando as margens do caderno foi lida como sinal de desatenção — uma leitura que a psicologia cognitiva veio, silenciosamente, desmontar. Uma pesquisa publicada em 2009 pela professora Jackie Andrade revelou que rabiscar durante tarefas monótonas de escuta aumenta a retenção de informações em 29%, porque ancora a atenção no presente em vez de deixá-la derivar para o devaneio. O achado não apenas desafia décadas de intuição pedagógica, mas convida educadores a distinguir entre o que parece distração e o que, de fato, sustenta a aprendizagem.
- Durante décadas, professores interpretaram rabiscos nas margens como prova de desatenção — uma suposição que parecia óbvia, mas estava errada.
- O estudo de Andrade revelou uma tensão real: o problema em aulas monótonas não é falta de esforço mental, mas excesso de capacidade ociosa que o cérebro preenche com devaneios prejudiciais à memória.
- Rabiscar funciona como âncora atencional — leve o suficiente para não competir com a escuta, mas presente o suficiente para impedir que a mente vagueie para pensamentos alheios.
- A distinção importa na prática: uso de celular e redes sociais dividem recursos cognitivos e prejudicam o aprendizado, enquanto desenhos repetitivos e automáticos operam em nível cognitivo completamente diferente.
- O campo da educação começa a ser pressionado a abandonar o pensamento binário sobre atenção e a reconhecer que sinais externos de foco podem enganar — e que o que parece distração pode ser, na verdade, retenção.
Por décadas, professores interpretaram o estudante que rabiscava o caderno como alguém claramente desatento. A suposição parecia evidente. Mas a psicologia cognitiva chegou a uma conclusão diferente.
Em 2009, Jackie Andrade, professora da Universidade de Plymouth, publicou uma pesquisa que mediu o que acontece quando pessoas rabiscam durante uma tarefa monótona de escuta. Quarenta participantes ouviram uma gravação enfadonha listando nomes de convidados para uma festa. Metade foi instruída a sombrear formas geométricas enquanto ouvia; a outra metade apenas escutou. Ao final, um teste surpresa de memória revelou que os rabiscadores lembraram em média 7,5 detalhes de uma lista de 16, contra 5,8 dos não-rabiscadores — uma diferença de 29%, estatisticamente significativa.
O mecanismo por trás desse resultado contraintuitivo está na forma como o cérebro funciona durante tarefas entediantes. O problema não é falta de esforço mental, mas excesso de capacidade disponível: quando uma apresentação não engaja, o cérebro preenche o espaço vazio com devaneios que consomem os recursos cognitivos necessários para processar e reter informação. O rabisco, na formulação de Andrade, funciona como uma âncora atencional — leve o suficiente para não competir com a escuta, mas presente o suficiente para ocupar o espaço que o devaneio colonizaria.
Nem toda atividade paralela produz o mesmo efeito. O rabisco precisa ser automático e cognitivamente simples — padrões repetitivos, sombreamento. Atividades que exigem mais atenção, como enviar mensagens ou ler outro material, têm efeito oposto e prejudicam a retenção. Professores têm razão em identificar o uso de celular como distração genuína. Mas os rabiscos nas margens operam em nível cognitivo completamente diferente.
O achado de Andrade introduziu uma nuance importante: há formas de engajamento parcial que sustentam a atenção com mais eficácia do que a tentativa de manter foco total e passivo por longos períodos. A implicação mais ampla é perturbadora: um estudante sentado em silêncio com os olhos fixos no quadro pode estar mentalmente ausente, enquanto outro com margens cheias de rabiscos pode ter retido o conteúdo com maior precisão. A questão deixa de ser se rabiscar parece atenção — e passa a ser se funciona.
For decades, teachers interpreted the sight of a student filling notebook margins with sketches and scribbles as a sign of inattention. The student was clearly not listening. The assumption seemed obvious, almost self-evident. But cognitive psychology arrived at a different conclusion, one that upended a century of classroom intuition.
In 2009, Jackie Andrade, a psychology professor at the University of Plymouth in England, published research in Applied Cognitive Psychology that measured what happened when people doodled during a monotonous listening task. She assembled forty participants and played them a two-and-a-half-minute recording of a flat, uninflected voice listing names of people invited to a party. Half the group was instructed to shade geometric shapes printed on paper while listening. The other half simply listened, without any additional activity. At the end came a surprise memory test—unannounced, unexpected. The doodlers recalled an average of 7.5 details from a list of 16. The non-doodlers recalled 5.8. The difference was 29 percent, and it was statistically significant. The students who had been drawing while listening had retained more.
The mechanism behind this counterintuitive result lies in how the brain actually works during boring tasks. Andrade's explanation hinges on a distinction that most people miss: the problem with attention during monotonous lectures is not too little mental effort but too much available mental capacity. When a presentation fails to engage, the brain does not simply shut down. It fills the empty space with daydreaming—involuntary mental wandering toward unrelated thoughts, worries, and fantasies. This wandering consumes cognitive resources that would otherwise be devoted to processing and remembering what is being said. Doodling, in Andrade's formulation, functions as an attentional anchor. It is light enough not to compete with listening but present enough to occupy the mental space that daydreaming would otherwise colonize. The mind stays partially tethered to the present moment instead of drifting away.
Not all parallel activities during a lecture produce the same effect. The critical condition is that doodling must be automatic and cognitively undemanding—patterned sketches, shading, repetitive drawing. Activities that demand more attention—texting, writing elaborate notes, reading other material—have the opposite effect. They divide cognitive resources and harm retention. This distinction matters practically in the classroom. Teachers are right to identify phone use and social media browsing as genuine distractions that undermine learning. But the doodling in notebook margins operates on a different cognitive level. According to the available evidence, it may actually be supporting the student's performance rather than sabotaging it.
Before Andrade's work, educational psychology tended to treat attention as binary: either a student was paying attention or was distracted. Her experiment introduced an important nuance: there are forms of partial engagement that sustain attention more effectively than the attempt to maintain total, passive focus over long periods. Research on attention during lectures had already shown that concentration deteriorates significantly after ten to fifteen minutes of continuous passive listening. Doodling emerges in this context as a natural compensatory mechanism, something many students had developed intuitively without understanding they were responding to a real limit in human cognitive architecture.
The broader implication cuts deeper than classroom tolerance for sketching. External signs of attention can deceive. A student sitting silently with eyes fixed on the board may be mentally elsewhere. Another with margins full of doodles may have retained the lecture's content with greater precision. This inversion of expectation suggests a wider reconsideration of how learning is evaluated based on observable behavior. It opens space for strategies that appear unconventional on the surface to be recognized for what they actually produce: genuine retention of taught material. The question is no longer whether doodling looks like attention. The question is whether it works.
Citações Notáveis
Doodling functions as an attentional anchor—light enough not to compete with listening but present enough to occupy the mental space that daydreaming would otherwise fill.— Jackie Andrade, psychology professor, University of Plymouth
A Conversa do Hearth Outra perspectiva sobre a história
So a student with a notebook full of doodles actually learned more than one sitting perfectly still?
Yes. In Andrade's study, the doodlers recalled 7.5 details out of 16, while the non-doodlers recalled 5.8. The difference held up statistically.
But why would adding a task help you focus? Doesn't that seem backward?
It does, until you understand what's happening in a boring lecture. Your brain doesn't go blank—it wanders. Daydreaming actually uses cognitive resources. Doodling occupies that wandering space without competing with listening.
So it's not that doodling helps you focus. It's that it stops you from unfocusing.
Exactly. It's an anchor. Light enough to not interfere with hearing, but present enough to keep your mind from traveling.
Does this work for everyone, or just certain types of learners?
The research suggests the effect isn't uniform across all learners, though the source doesn't detail which profiles benefit most. But the principle seems to apply broadly—it's about managing a real limit in how long humans can passively listen.
What about other activities? Could I just tap my pen instead?
No. The activity has to be automatic and cognitively light. Texting or writing elaborate notes actually divides your attention and makes things worse. It has to be something your hands can do while your mind stays on the lecture.