Systematic reviews of the field have found that the number of ATC are growing rapidly, but have focused on memory and planning, that there is emerging evidence for efficacy, that a lot of scope exists to develop new ATC.
sˌɪstəmˈæɾɪk ɹᵻvjˈuːz ʌvðə fˈiːld hæv fˈaʊnd ðætðə nˈʌmbɚɹ ʌv ˌeɪtˌiːsˈiː ɑːɹ ɡɹˈoʊɪŋ ɹˈæpɪdli, bˌʌt hæv fˈoʊkəst ˌɔn mˈɛmɚɹi ænd plˈænɪŋ, ðæt ðɛɹ ɪz ɪmˈɜːdʒɪŋ ˈɛvɪdəns fɔːɹ ˈɛfɪkəsi, ðˌæɾə lˈɑːt ʌv skˈoʊp ɛɡzˈɪsts tə dɪvˈɛləp nˈuː ˌeɪtˌiːsˈiː.