Home Research BCCN I Project Details C3 - Dynamic adaptation in decoding temporal information
Personal tools

C3 - Dynamic adaptation in decoding temporal information

Thomas Rammsayer and Michael Herrmann

Temporal information processing (TIP) in the brain seems to be based on distinct timing mechanisms. Evidence from imaging (Lewis 2003) and neurochemical (Rammsayer 1999 2003) studies suggests that temporal processing of intervals in the sub-second range is based on sensory mechanisms beyond cognitive control. Existing models for TIP of such brief intervals can be categorized into labeled-line models and population clocks (Buonomano 2002) or a combination of both (Ivry 2002). Recent studies on the effect of practice on temporal discrimination indicated that there are separate networks for different interval durations in the sub-second range (Karmarkar 2003). Mechanisms associated with timing of brief intervals appear to be located in the basal ganglia (Harrington 1998; Rammsayer 2003), the cerebellum (Ivry 1996) or motor and premotor areas (Lewis 2003, Melamed 2004). For long temporal intervals timing involves working memory functions (Rammsayer 1999, Lewis 2003) that depend on attentional processes (Rammsayer 2001) as well as context and task specification (Mangels 1998, Migliore 2001) which interact with timing mechanism in a rather complex way.

Belongs to Group(s):