APPENDIX 1. The complementary questions regarding symptoms and signs not included in the ICD-10 and/or DSM-IV.
Asperger syndrome related additional features questionnaire (ASFQ)
The following domains were included
1. Presence of face recognition difficulties
Do you have difficulty recognizing familiar persons from their faces?
Standardized clarifying questions were used, such as:
- If the clothing, color of the hair of an individual familiar to you has changed or you meet unexpectedly in an unfamiliar place, would you be able to recognize him/her?
- Do you generally recognize people on the basis of their style of walking, clothing, voice-/ speech rather than by their face?
2. Presence of aberrant sensibilities
The aim was to find out whether the individual considered him/herself and-/or was considered to represent hyper sensibility in the following modes of sensation:
- touch (light or strong)
- external temperature
Fixed sets of clarifying questions were used.
3. Sleeping/diurnal rhythm disturbances:
The clarifying questions dealt with: getting to sleep, awakenings during the night, amount of sleep, abnormality of diurnal rhythm, use of sleeping pills, restless legs, impact of possible difficulties related to diurnal rhythm of every day life
4. Aberrant eating habits
The fixed clarifying questions comprised the following items:
- unusual-/odd food preferences
- unusual routines regarding arranging food on the plate and eating
- presence of aversion due to the smell of the food
- ongoing or past anorectic behavior
The clarifying questions pinpointed possible presence of selection difficulties in ordinary every day situations (ice-cream a or b).
It was also established whether making up one's mind in such situation lead to avoidance of such situations. It was also made clear whether the person in such situations used clearly excessive time for making the decisions or whether these caused anxiety?
Another set of questions aimed at clarifying whether the individual him/herself recognized traits of hyperactivity and/or attention difficulties or whether other people had made him/her aware of such traits.
6. External appearance
Possible presence of unusual physical features with respect to stature, flexibility of joints and minor stigmata were recorded.
In both genders the questions aimed at finding out whether the individual frequently was wrongly perceived with respect to chronological age. Also the interviewer's perception of a possible youngish appearance was recorded.
In males questions also were focused on the age for starting regular shaving and the maximum interval between shavings which was compatible with socially acceptable tidiness of the face. Answers reporting such shaving less frequently than twice a week were considered being out of average range for adult Finnish men.