Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Bert Cameron
Table title:
International competitions
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Competition </th><th colspan=1 rowspan=1 > Venue </th><th colspan=1 rowspan=1 > Position </th><th colspan=1 rowspan=1 > Event </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <th colspan=6 rowspan=1 > Representing Jamaica </th></tr>
<tr> <td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > Commonwealth Games </td><td colspan=1 rowspan=1 > Edmonton, Canada </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1981 </td><td class="highlighted"  colspan=1 rowspan=1 > Central American and Caribbean Championships </td><td colspan=1 rowspan=1 > Santo Domingo, Dominican Rep. </td><td class="highlighted"  colspan=1 rowspan=1 > 1st </td><td class="highlighted"  colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 1982 </td><td colspan=1 rowspan=1 > Commonwealth Games </td><td colspan=1 rowspan=1 > Brisbane, Australia </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Central American and Caribbean Games </td><td colspan=1 rowspan=1 > Havana, Havana </td><td class="highlighted"  colspan=1 rowspan=1 > 1st </td><td class="highlighted"  colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1983 </td><td colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Helsinki, Finland </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > Central American and Caribbean Championships </td><td colspan=1 rowspan=1 > Nassau, Bahamas </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > Pan American Games </td><td colspan=1 rowspan=1 > Indianapolis, United States </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > Olympic Games </td><td colspan=1 rowspan=1 > Seoul, South Korea </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Who won the 400 m at the 1981 Central American Championships?
Answer:
Bert Cameron won the 400 m at the 1981 Central American and Caribbean Championships and followed this with another gold medal at the 1982 CAC Games.