Science of Senses
Science of Senses
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What are Sensory Systems?
Sensory organs are organs that sense and transduce stimuli.
We have various sensory organs (i.e. eyes, ears, skin, nose, and mouth) that correspond to a respective sensory systems.
visual system (sense of vision)
auditory system (sense of hearing)
somatosensory system (sense of touch)
olfactory system (sense of smell)
gustatory system (sense of taste)
These sensory systems provide external stimuli to brain in the form of signals, which enable brain to make a perception of surrounding.
What is perception?
The process by which we become aware of events around us and give meaning to them
These events come to us as sensory stimulus
Sensory stimulus in the environment is converted to mental representation
Interpretation – we attach meaning to stimuli
This new input, analyzed in the context of previous learning helps us define “reality” for us
Objective reality vs perceived reality
This perceived reality leads us in deciding our course of action
Internal Senses
In addition to 5 senses mentioned above, we also have some internal senses which detect stimuli from internal organs.
vestibular system (sense of balance) sensed by the inner ear and providing the perception of spatial orientation
proprioception (body position)
nociception (pain)
Further internal chemoreception- and osmoreception-based sensory systems lead to various perceptions, such as hunger, thirst, suffocation, and nausea, or different involuntary behaviors, such as vomiting.
Additional Pointers
Additional Pointers
Typoglycemia - Brain can read jumbled letters
Sensor Adaptations
Brain's Learnability is Amazing
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