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Article: Response patterns and force relations of monkey spinal interneurons during active wrist movement.

Full Text (publisher's website) ; Article Metadata ; Article Data (extracted)
Maier MA; Perlmutter SI; Fetz EE
J. Neurophysiol., 1998


Table 1.

Type and numbers of response patterns in alternating and center-out tasks in the preferred direction

Type MN
Alternating Center-Out PreM-IN
n Percent n Percent Alternating Center-Out Sy-IN
n Percent n Percent Alternating Center-Out U-IN
n Percent n Percent Alternating Center-Out
n Percent n Percent
p+t+ 2 29 3 14 11 25 26 46 1 10 6 25 25 24 121 39
t+ 3 43 16 72 16 36 16 28 5 50 11 46 38 36 107 35
p+ — — 7 16 2 4 2 20 3 13 28 26 40 13
decr 1 14 3 14 3 7 1 2 — — 7 6 14 5
(p+)ramp — — — 3 5 1 10 — — 3 1
mixed+− — — 1 2 6 11 — — 1 1 9 3
No pref. dir. — — 3 7 2 4 — 2 8 3 3 14 5
Nonclassified* 1 14 — 3 7 — 1 10 2 8 4 4 —
Total 7 22 44 56 10 24 106 308
Grand Total 29 100 34 414

  • Percentages in terms of task-modulated units sampled. p+t+, phasic-tonic increase in activity; t+, tonic increase in activity; p+, phasic increase in activity; decr, decrementing activity; (p+)ramp, ramp activity with or without preceding phasic burst; MN, motoneurons; PreM-IN, premotor interneurons; Sy-IN and U-IN, synchrony and unidentified interneurons.

  • ↵* Two Sy-INs (1 in alternating task, 1 in center-out task) and 3 PreM-INs had activity that was not modulated with the task; these cells are described in the companion paper (Perlmutter et al. 1998) and are not discussed further in this paper. For other nonclassified cells, insufficient data were recorded on tape to classify response patterns.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source