A Signal Line Crossover is the most common signal produced by the MACD. First one must consider that the Signal Line is essentially an indicator of an indicator. The Signal Line is calculating the Moving Average of the MACD Line. Therefore the Signal Line lags behind the MACD line.
Autism, PDD-NOS & Asperger's fact sheets | A guide to classification and diagnosis of Autism and Asperger's syndrome. The classification and diagnosis of autism, Aspergers syndrome and other related disorders is constantly changing, and is increasingly the subject of much discussion and dispute.
Asperger syndrome (AS) is one of a group of neurological disorders known as autism spectrum disorders (ASDs). AS is considered to be on the mild end of the spectrum. Some people with ASDs, including those with AS, are classified as high functioning.