The name is absent

_________Reference_________

N

Age (Months)

Comparison group

____________________________________Findings____________________________________

Losche (1990)

8

4-12m, 13-21m,

22-30m, 31-42m

TD

Less goal directed action from 4-12m; impairment in sensorimotor development from

13-21m; reduced role as ‘social actor’ from 22-30m_________________________________

Adrien et al. (1991, 1993)

12

0-12m, 13-24m

^td

Before 12m: social attention, communication, motor behaviors;

13-24m: as above plus gaze avoidance, hypoactivity, absence of emotional expression

Osterling & Dawson (1994)

11

12m__________

TD

Less pointing, showing, looking at others and responding to name____________________

Werner et al. (2000)________

15

8-10m_________

TD__________

Less orienting to name, marginally less looking at others faces while smiling___________

Osterling et al. (2002)_______

20

12m__________

ID, TD__________

Less orienting to name, less looking at people_________________________________________

Werner & Dawson (2005)

36

12m; 24m

ASD with and
without regression;

TD

At 12m infants with ASD with no regression (‘early onset autism’) showed fewer joint
attention and communication behaviors than infants with ASD with later regression
and TD infants; At 24m both ASD groups had fewer words, vocalizations, declarative
points, social gaze and orienting to name, than TD group____________________________

Mars et al. (1998)___________

25

12-30m

TD

Autism< PDD/TD for social interaction and communication (e.g. joint attention)_______

Baranek (1999)____________

11

9-12m_________

ID, TD__________

Reduced response to name and orientation to visual stimuli compared to ID group_____

_________Reference_________

N

Age (Months)

Comparison group

______________________________________Findings______________________________________

Maestro et al. (2001, 2002,

2005)_____________________

15

0-24m

TD

Abnormalities in intersubjective behaviors (anticipation of another’s aim and imitation)
and poor attention to social but not non-social stimuli (objects) in first 6m; impaired______