Psycholinguistics-Morphology



How are these words related?



How are these words related?



Participate in a psycholinguistic experiment (Choose a short one)



Lexical Decision Task



Example of LDT test items:

tubes

govern

jubbing

bribe

leckom

tubes

trade

flup

government

kepter

allowing

leckom

tribe

flupper

swap

rejont

allow



Types of Priming



What happens if you vary orthographic/phonological overlap?

What happens if you vary semantic relatedness?

 

High semantic relationship create/creation

Low semantic relationship create/creature



All words matched on ortho overlap and semantic similarity (speaker judgments) of 1 and 3 matched.


    1-high semantic relationship, morpheme in common
adapter / adaptable

    2-Low semantic relationship, historical morpheme in common part / apartment

    3-high semantic relationship, no morpheme in common scream / screech

 

1 and 2 primed better than 3 so it's the morph in spite of varying semantics that causes priming.



semantically transparent: friendly / friend and govern / government.

semantically opaque: depart / department and author / authority.



What role does morphology play in recognizing words?

If we parse into morphemes (un+willing+ly) then polymorphemic should take more time to recognize than monomorphemic (holding word length constant).



Various hypotheses:

1-Full listing

2-Full parsing

3-Race between parsing and access to whole word

4-Dual-route: depends on regularity of word



Evidence for full listing:


Frequency affect reaction time 

cumulative frequency is freq of 'river' plus freq of 'rivers' (freq of r-i-v-e-r)

singular frequency is freq of 'river'

plural frequency is freq of 'rivers'


River

Rivers

Windows

Window


 

If cumulative freq affects RT then it looks like -s is stripped off

If individual freq affect RT then it looks like each form exists in mind


Evidence for parsing

barking