This is the 9852nd most frequent Japanese word.
視覚
"視覚" (shikaku) means "visual perception" or "sense of sight."
In this sentence, 視覚的 is an adjective form of 視覚, emphasizing the use of visual elements as educational tools or aids.
視覚的な刺激は学習に重要な役割を果たします。
Visual stimuli play an important role in learning.
Here, 視覚 is used to denote the ability to see, and the sentence reflects on adaptations following the loss of vision.
視覚を失っても他の感覚が鋭くなることがあります。
Even when vision is lost, other senses can become sharper.
The term 視覚 is used to refer to vision as one of the fundamental senses, highlighting its importance as a perceiving mechanism.