THERE IS NO SUCH THING AS BEING LEFT OR RIGHT BRAINED

THE HIDDEN DALMATIAN

WHAT DO YOU SEE?

The idea that people are either “left brained” or “right brained” is a popular neuromyth. The hemispheres have processing biases, but they do not function as separate personalities. In normal perception they operate together continuously. You are not one or the other.

You may see scattered black spots. You may see a Dalmatian dog with its head lowered, sniffing the ground. Both responses are normal.

The left hemisphere is biased toward local detail and fine analysis. It registers individual dots, contrasts, edges, and background texture, treating these elements as separate and unconnected. This type of processing is adaptive for detecting small features and subtle environmental changes. At this level of processing, there is no clear object, only fragments.

The right hemisphere is biased toward global, gestalt processing. It does not focus on isolated features in separation. Instead, it integrates spatial relationships, implied edges, and overall configuration into a single coherent form. This is why people struggle to draw their best friend’s nose from memory, yet recognise their face instantly. Faces are not typically processed as a checklist of separate features. They are recognised as a whole pattern, defined by the relationships between features.

Consider a bird pecking for tiny grains on the ground. It must discriminate minute contrasts and textures to locate edible fragments. That is local detail processing. But if the overall pattern of the scene shifts, and a large shadow resolves into a hawk, survival depends on integrating the whole configuration rapidly. That is global processing.

You cannot detect the predator without first registering fragments of movement and contrast. You cannot survive by seeing fragments alone. Perception depends on both systems operating together. The Dalmatian emerges not because one hemisphere dominates, but because detail and configuration are integrated into a meaningful whole. #leftandrightbrain #lateralizationofthebrain #rightbrain #leftbrain #pseudoscience

Rebecca Sylvia

I am a Londoner with over 30 years of experience teaching psychology at A-Level, IB, and undergraduate levels. Throughout my career, I’ve taught in more than 40 establishments across the UK and internationally, including Spain, Lithuania, and Cyprus. My teaching has been consistently recognised for its high success rates, and I’ve also worked as a consultant in education, supporting institutions in delivering exceptional psychology programmes.

I’ve written various psychology materials and articles, focusing on making complex concepts accessible to students and educators. In addition to teaching, I’ve published peer-reviewed research in the field of eating disorders.

My career began after earning a degree in Psychology and a master’s in Cognitive Neuroscience. Over the years, I’ve combined my academic foundation with hands-on teaching and leadership roles, including serving as Head of Social Sciences.

Outside of my professional life, I have two children and enjoy a variety of interests, including skiing, hiking, playing backgammon, and podcasting. These pursuits keep me curious, active, and grounded—qualities I bring into my teaching and consultancy work. My personal and professional goals include inspiring curiosity about human behaviour, supporting educators, and helping students achieve their full potential.

https://psychstory.co.uk
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