Don't use hasMany, Use has one like this
$this->Question->bindModel(
array(
'hasOne' => array(
'QuestionTopic'=>array(
'className' => 'QuestionTopic',
'foreignKey' => 'question_id',
'dependent' => true,
'type' => 'left'
)
)
)
);
print_r($this->Question->find('all',array('conditions'=>array('QuestionTopic.areas_id' => array('165')))));