The HED Task Catalog is under development. IDs are not stable until formal release. Comments are welcome at github.com/hed-standard/hed-task/issues.

Implicit and Statistical Learning

Scope: Acquisition of structure without explicit instruction: implicit memory, procedural memory. Paradigm-level coverage includes artificial grammar learning, serial reaction time, statistical word-segmentation, perceptual category learning — these live in task_details.json, not as separate process rows.

Out of scope: Reinforcement-driven associative learning (Associative Learning and Reinforcement).

Note

Open issues: The category is intentionally lean at the process level because most of the work happens at the task level. If sequence-structure learning becomes distinct enough to need its own process row, it should live here.

This category contains 2 processes.

Implicit memory

Process ID: hed_implicit_memory

Memory expressed without conscious recollection, measurable by priming, skill learning, and conditioning.

Tasks that engage this process: Artificial Grammar Learning Task, Contextual Cueing Task, Serial Reaction Time Task

Fundamental references

  • Graf & Schacter (1985) JEP: Learning, Memory, and Cognition 11:501–518 (DOI)

Further references

  • Schacter, Wig & Stevens (2007) Current Opinion in Neurobiology 17:171–176 (DOI, PubMed)

Procedural memory

Process ID: hed_procedural_memory

Non-declarative memory for skills and procedures, expressed through improved performance rather than conscious recollection.

Tasks that engage this process: Artificial Grammar Learning Task, Mirror Tracing Task, Motor Sequence Learning Task, Probabilistic Classification Learning Task, Serial Reaction Time Task

Fundamental references

  • Cohen & Squire (1980) Science 210:207–210 (DOI)

Further references

  • Doyon, Gabitov, Vahdat, Lungu & Boutin (2018) Current Opinion in Behavioral Sciences 153:1–12 (DOI)