31.   This, he said, was revolutionary in drama, and altered the perception of human behavior.

32.   Two years ago, Marmor published research indicating high doses of Viagra temporarily increased light sensitivity and altered color perception in some patients.

33.   Watch out, however, for a change in government statistics that may alter perceptions.

34.   What these images have in common with the rest of the exhibition, of course, is that they alter our perception of the body.

35.   Whether the stadium is really in a rough area does not alter the perception, which will count when voting on the issue comes up.

36.   While most filmmakers struggle to create awareness for their new works, she has found herself battling to alter wrong perceptions of her film.

37.   While twisting the hands of a clock cannot change the weather, the shift to Daylight Saving Time can alter human perception of weather events.

38.   And it has totally altered their perception of death.

39.   Deputy Prime Minister Francisco Alvarez Cascos said the derailments should not alter perceptions about train security in Spain.