Why Misperception is So Common & Animal Superpowers We Might Have - SYSK Choice

Sense of Body

Jackie Higgins explains proprioception, our sense of body awareness, through the story of Ian Waterman. After a virus destroyed his proprioceptive nerves, Ian lost all sense of his body from the neck down, feeling completely disembodied. He had to relearn every movement by relying on his vision to control his body, a process that required immense focus and effort 1. Jackie highlights how Ian's unique condition underscores the importance of proprioception in our daily lives 2.

He could only gather control and master his body again by allowing his sense of vision to step in for this lost sense of proprioception.

--- Jackie Higgins

Ian's journey is a testament to human resilience and adaptability.

   

Sense of Direction

Jackie discusses the intriguing possibility that humans might possess a magnetic sense of direction, similar to birds. Research by Joe Kershvink at Caltech suggests that tiny magnetite crystals in our bodies could act like a compass, helping us navigate using the Earth's magnetic field. This theory is being explored through experiments that alter magnetic fields around participants to observe changes in brainwave patterns 3.

It's a really fascinating possibility that humans might be able to have this sense of direction.

--- Jackie Higgins

Understanding this sense could explain why some people have a naturally good sense of direction.

   

Sense of Hearing

The sense of hearing in both humans and animals reveals remarkable capabilities. Jackie describes how the great gray owl uses stereoscopic hearing to detect prey under snow from 30 meters away. This ability to map their environment through sound is akin to how humans use echolocation subconsciously to navigate spaces 4.

The great gray owl can hear a mouse or a vole underneath the mound of snow from 30 meters away.

--- Jackie Higgins

This highlights the sophisticated auditory perception that many animals possess, often surpassing human abilities.

   

Sense of Touch

Touch is a complex sense with various components, as illustrated by Ian Waterman's condition. Despite losing his sense of touch, Ian could still perceive temperature, showing the different sensors in our skin. Jackie also mentions the discovery of the 'caress sensor,' which responds to gentle, body-temperature touches, emphasizing the nuanced nature of touch 2.

There are many different senses in our skin, and if you stroke his arm, he can't feel it, but he can feel hot and cold.

--- Jackie Higgins

This complexity makes touch one of the most intriguing senses.

   

Sense of Taste

Jackie explores the sense of taste through the example of the goliath catfish, which uses its entire body to taste its environment. This fish's taste buds are similar to those on our tongues, highlighting our shared evolutionary history. By studying such animals, we can gain deeper insights into our own sensory experiences 5.

The taste buds on the outside of the catfish are incredibly similar to the taste buds on our tongue.

--- Jackie Higgins

Understanding these connections enriches our appreciation of the sense of taste.