We tend to notice things that we expect to see and to disregard things that we aren't expecting. this tendency is called

Answer – A perceptual bias

When we observe things with perpetual bias, we have the tendency to only notice those things that we already are expecting to see, while we ultimately disregard and fail to notice the things that we aren't expecting. The effect of perceptual bias is that it leads a person to get only a partial and perhaps inaccurate impression of whatever is being observed.

earlier philosophers whose work influenced the enlightenment included bacon, descartes, locke, and spinoza. the major figures of the enlightenment included beccaria, diderot, hume, kant, montesquieu, rousseau, adam smith, and voltaire. it spread the ideas of the enlightenment across europe and beyond.