PIPages
Labs

Paul Forlano

CUNY Brooklyn College, NY·Neuroscience

Hearing is not fixed. The inner ear can be tuned up or down by signals from the brain, and dopamine, a chemical messenger best known for its roles in reward and movement, is one of these signals.

Fields

Neuroscience

Biology

Physiology

Topics

auditory neuroscience

hearing

inner ear

Grants
1 known grant, through Apr 2027

What they work on

  1. Test whether sex steroids and melatonin regulate the inner ear's dopamine system by manipulating hormone levels in plainfin midshipman fish and measuring dopamine innervation and receptor gene expression.
  2. Measure how hormone manipulation changes dopamine synthesis and metabolism (production and breakdown) in the midshipman inner ear.
  3. Determine whether exposure to male advertisement calls changes local dopamine synthesis in the inner ears of female midshipman fish.
  4. Measure changes in inner ear dopamine synthesis in females while they respond and attend to social acoustic stimuli, linking dopamine to better detection of social signals.

More about the research

Dopamine-releasing nerve fibers reach the inner ear and are known to become more active after noise damage. Far less is known about what controls them during normal hearing, especially when an animal is listening for social calls. This research asks how hormones and social sounds adjust dopamine in the inner ear to sharpen hearing.

Why it matters

Hearing changes across hormonal cycles, declines with age as hormones drop, and is affected in diseases that lose dopamine neurons, such as Parkinson's. These findings could help explain why some people are more vulnerable or more resilient to hearing loss. They may also offer insight into autism spectrum disorder (ASD) and ADHD, conditions in which people have difficulty detecting and orienting to social sounds.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Hormonal and acoustic regulation of the dopaminergic auditory efferent system: improving detection of social acoustic signals at the level of the inner ear

NIH · May 2022 – Apr 2027

Closest labs

R. Burger

Lehigh University, PA·Neuroscience

Test whether overexpressing BMP7, a signaling protein that patterns the early ear, repatterns the frequency tuning of hair cells in the chick inner ear toward low-frequency types.

Bo Hua Hu

University of Texas at Dallas, TX·Neuroscience

Determine how galectin-3, a sugar-binding immune protein, maintains hearing and cochlear structure, using mice in which the Lgals3 gene that encodes it has been disrupted.

Srikanta Mishra

University of Texas at Austin, TX·Neuroscience

Examine whether otitis media (OM), common in early childhood, affects the development of spatial listening and of energetic and informational masking after the ear problem resolves, by following children longitudinally.

The school

CUNY Brooklyn College: 1 labs on PI Pages, $15M a year on research.

More about CUNY Brooklyn College

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