Calling all posts in a custom post type taxonomy

Hi!

At the moment, I’m using this code:

<?php 

$args=array(
  'reviews_author' => 'author',
  'post_type' => 'reviews',
  'posts_per_page' => 10,
  'caller_get_posts'=> 1
);
$my_query = null;
$my_query = new WP_Query($args);
if( $my_query->have_posts() ) {
  while ($my_query->have_posts()) : $my_query->the_post(); ?>
    <a title="<?php the_title(); ?>" href="<?php the_permalink() ?>" rel="bookmark"><?php the_post_thumbnail('tiny', array ('class' => 'alignleft')); ?></a>
    <?php
  endwhile;
}
wp_reset_query();  // Restore global post data stomped by the_post().
?>

To generate the thumbnails of posts which are in a custom post type taxonomy. However, rather than having to input the ‘author’ for the ‘reviews_author’ array entry, I would like it to generate it automatically depending on what post it is displaying. For example, if I’m currently displaying a post that is part of the custom post type taxonomy “cats”, I want it to display all other posts in the taxonomy “cats”, but at the same time, if a post is part of the taxonomy “dogs”, I want it to display those in “dogs”. Does that make sense?

Thanks in advance!