The results show different consistency across studies between the three types of timing ability .
The highest consistency of results showing atypical time perception abilities is found in high-level time perception studies .
It remains unclear if autism is characterized by a fundamental time perception impairment .
Overall , there are a number of studies that show differences between autistic and non-autistic individuals , but some studies do not find such differences .
Group differences are more consistent across studies using complex tasks rather than simpler more fundamental timing tasks .
Problems with timing and time perception have been suggested as key characteristics of autism spectrum condition ( ASC ) .
Studies and personal accounts from clinicians , parents , caregivers , and self-reports from autistic people themselves often refer to problems with time .
Although a number of empirical studies have examined aspects relating to time in autistic individuals , there remains no clear consensus on whether or how timing mechanisms may be affected in autism .
Prospective memory in adults with high-functioning autism spectrum disorders: exploring effects of implementation intentions and retrospective memory load.
This study examined , for the first time , the impact of implementation intentions on prospect i ve memory ( PM ) performance in adults with autism spectrum disorders ( ASD ) and further explored the role of retrospective memory for PM in ASD . PM was assessed with Virtual Week , a computerized game simulating upcoming everyday-life tasks .  Twenty-seven adults with ASD and 27 age- and ability-matched controls were included . Half of the participants were instructed to form implementation intentions ( i.e. , encoding PM tasks in form of if-then statements ) , while the rest received simple PM instructions . Results provide first tentative evidence for beneficial effects of implementation intentions and PM tasks with low dem and s on retrospective memory for adults with ASD 's PM . Overall , results point to the importance of planning and retrospective memory for successful prospect i ve remembering in ASD
The results show different consistency across studies between the three types of timing ability .
The highest consistency of results showing atypical time perception abilities is found in high-level time perception studies .
It remains unclear if autism is characterized by a fundamental time perception impairment .
Overall , there are a number of studies that show differences between autistic and non-autistic individuals , but some studies do not find such differences .
Group differences are more consistent across studies using complex tasks rather than simpler more fundamental timing tasks .
Problems with timing and time perception have been suggested as key characteristics of autism spectrum condition ( ASC ) .
Studies and personal accounts from clinicians , parents , caregivers , and self-reports from autistic people themselves often refer to problems with time .
Although a number of empirical studies have examined aspects relating to time in autistic individuals , there remains no clear consensus on whether or how timing mechanisms may be affected in autism .