7. A computer system configured to validate CAPTCHAs, the computer system comprising: one or more hardware processors programmed, via executable code instructions, to implement: CAPTCHA generator module configured to: determine a phrase of words that, when perceived together, comprises one or more meanings associated with the phrase of words that assist human perception of the phrase of words, and further comprises a deviation from a correct presentation of at least one word, wherein the likelihood of human error is determined at least in part by adjusting a level of change to the deviation of the word; and generate a CAPTCHA user interface depicting: the phrase of words including the deviation from the correct presentation, wherein the deviation is configured for human perception as to the correct presentation of the deviation based on context of the deviation within the phrase of words, and at least two options associated with respective two or more correct presentations for the deviation, wherein at least one of the options is associated with the correct presentation of the deviation within the phrase of words and at least one of the options is associated with an incorrect presentation of the deviation within the phrase of words; a human validator module configured to: receive a selection of at least one of the options associated with the CAPTCHA user interface; determine whether the selected option is the option associated with the correct presentation of the deviation within the phrase of words; generate an indication of whether the selected option was provided by a human based on said determination; and transmit the generated indication.
7. A computer system configured to validate CAPTCHAs, the computer system comprising: one or more hardware processors programmed, via executable code instructions, to implement: CAPTCHA generator module configured to: determine a phrase of words that, when perceived together, comprises one or more meanings associated with the phrase of words that assist human perception of the phrase of words, and further comprises a deviation from a correct presentation of at least one word, wherein the likelihood of human error is determined at least in part by adjusting a level of change to the deviation of the word; and generate a CAPTCHA user interface depicting: the phrase of words including the deviation from the correct presentation, wherein the deviation is configured for human perception as to the correct presentation of the deviation based on context of the deviation within the phrase of words, and at least two options associated with respective two or more correct presentations for the deviation, wherein at least one of the options is associated with the correct presentation of the deviation within the phrase of words and at least one of the options is associated with an incorrect presentation of the deviation within the phrase of words; a human validator module configured to: receive a selection of at least one of the options associated with the CAPTCHA user interface; determine whether the selected option is the option associated with the correct presentation of the deviation within the phrase of words; generate an indication of whether the selected option was provided by a human based on said determination; and transmit the generated indication. 9. The computer system of claim 7 , wherein the deviation from the correct presentation comprises misspelling.