Dorsal pathway
● Ipsialter: What
Ventral Pathway: (first to superior olive, then IC) “Where”
● Ipsilaterla and contralalteral
Afferent fibers
● Most pass through inferior colliulus (IC)
● Main locus of afferent convergence
● Integrates what and where auditory cures
● Uniedied sound percept
9:48 next slide
Mammal-rat diagram
Anatomy of cat-next slide
IC - firs stop nuclue of lateral lemniscus, via the fiber tracts
Cyan line
● Superior olivary complex
● Some form cochlear nucleus go straight to the interfrior collicul
Ventral stream
Grey-inhibtory
White-exchitatory
DNLL-Dorsal nucleus
Ipsilaterla right side
Contralaterla-left side
CI integrates sneoryt o creat auditory percepts
Medial middle
Lateral side
Outsdide two regions
-ICDC:dorsal cortex
-ICX: external nucleus/external cortex
70% are binaural: allow you to create maps
DCIC-monoaural from contralateral
● Sound onsets: sharp responses in the voice
● Stimulus epcific adaptation: if sound is repeated multiple times,
PSTH-ton ebusrt, neurotransmitter adaptation, adaptation adapts in short term response
● Here happens in tens of seconds
ICC
● Easier to get to, getting an elextorde, easier to just keep going
● Intrinsic neurons: neurons native to the structure,
● Discshaped cell, large and well defined orientation
