Kin 211 motor labs

MAKE SURE KNOW WHAT FORMULAS MEAN, WHEN TO APPLY, DISTINGUISH THEM

MOTOR LAB 1: what does constant, absolute and variable error measure

constant = msr bias

--> postive or negative

absolute = msr accuracy

--> always positive

variable = msr consistency

MOTOR LAB 2

Hicks Law describes what

how woudl increase curvilinearly and linearly

how to find RT

LINEAR to find RT = RT increase linearly as # stimulus responses double or incr in 1 bit

as N(choices) increase, Rt incre curvilinearly

RT = a + b[log2(N)]

MOTOR LAB 3

STM duration and capacity

3 things that affect duration and capacity

Graph of short-term sensory store, showing how we will forget shi

STM = 30 sec duration, 7 chunks of info

rehearsal = incr duraction by repetitions of info

interference = decr duration BO limited capacity and inability to rehearse

Chunking = incr capa by linking info tgt

as time where asked to name the letters(the cue) INCREASES, worse @ memorize letters

MOTOR LAB 4

what is bottle neck theory

what is occurring and AKA what

at some pt attn info processing becomes serial...2nd task is slower

delay = pschological refractory period (PRP)

SOA = time between S1 and S2

decr SOA -> incr RT (moves quicker in succession -> harder to guard)

MOTOR LAB 5

what is a motor program

what is the PONR

how to find

what ahppens if constant error

pre-structured, organized in advance set of neural commnads -> mvmt sequence

point of no return

-> release of motor commands and prob of inhibting release is 50%(a time)

if CE(constantly over time) -> add to time

MOTOR LAB 6

FITTS LAW... found what...equation

ID = ___

MT increase linearly as index of difficulty (ID) incr

-->MT = a + b[log2(2A/W)]

ID = log2(2A/W)

-->A = mvmt amplitude

W= target width

Motor Lab 7

what constant and variable practice

which one better in acquisition and retention & transfer

constant = only rhearse one variation of skill in prac

variabe = rehearse many variation of skill in prac

acquisition btter for constant practice

variable better for retnetion and transger

MOTOR LAB 8

3 types of practice and amt of interference

what is CI effect

blocked: low interference

AAAAAA, BBBBBB, CCCCCC

serial interference: medium interference

ABC, ABC, ABC, ABC, ABC

random practice: high interference

CBABACCABACBCBA

CI effect - blocked prac>random in acquisition

random prac> blocked prac in retention & transfer

MOTOR LAB 9

what is feedback

where does extrinsic feedback come from

feedback = sensory info to a movement

come from before (instructions), during(concurrent) or after(terminal) mvmt