The results of our research suggest that individual differences in the ability to use auditory cues in noise may contribute to the range of communication challenges experienced by older adults.
Perceptual Decision-Making for Speech Recognition in Noise
Our study indicates that perceptual decision-making is engaged for difficult word recognition conditions, and that frontal cortex activity may adjust how much information is collected to benefit word recognition task performance.
Train Your Brain to Listen
One of the most important things a person with hearing loss can do is to develop listening strategies. Auditory training, or auditory rehabilitation, is essentially a formal program for teaching the brain to recognize speech and other sounds that may not be as clear as they are with typical hearing.
A Texas Accent?
I had hearing problems all my life and speech therapy through grade school. I always say that it was as a result of speech therapy that I do not really have a Texas accent! (Although some people would disagree.) I don't know why I didn't have hearing aids as a child, but I always sat in the front seats of classrooms to be sure to hear.
Listening to The Story
I have some significant memories from childhood that have remained with me and influenced who I am today. One of my most special memories is of practicing speech and auditory therapy with my younger brother, Alex. Alex was born with hearing loss, so my mom and dad intervened early to ensure his future success with not only hearing, but also speech.
Making Sense of Sound
Valeriy Shafiro conducts research in hearing and speech perception that focuses on finding new ways to diagnose auditory deficits and improve communication abilities in adults.
Making Friends and Influencing People
By Kathi Mestayer
Lorrie Moore, the author of “Who Will Run the Frog Hospital?” was in town in Williamsburg, Virginia, giving a reading at Tucker Hall at the College of William and Mary. My friend Susan had invited me, and I actually remembered the author’s name and knew that book was somewhere on my shelf, so I said yes.
My husband Mac had read the book, and was sure I would like it. I managed to find it on our jumbled bookshelves, which are kind of in alphabetical order (for fiction, at least). And it was short, only 147 pages! Before long, I realized that I had already read it, too. Not because I remembered anything, mind you, but because my marks and scars were present pencil lines in the margins, and a few dog-eared pages. Mac never marks up a book, or dog-ears the pages, and it drives him crazy when I do. So, it’s usually easy to tell whether I’ve read a book. In this case, I was probably walking that fine line with my fine lines.
I got 33 pages into the book, and it was lively stuff. One passage I had circled (in ink!) was, “She inhaled and held the smoke deep inside, like the worst secret in the world, and then let it burst from her in a cry.” I love revisiting a book, like a stone skipping over water, hitting the high spots thanks to my notes.
So when the day of the reading arrived, I went to listen to Lorrie Moore read her favorite passages in her own voice.
Wishful Thinking
When I got to the lecture hall, I sat by Susan, who was fortunately in the second row, near the aisle. Someone introduced Lorrie Moore. I couldn’t hear most of that, but it didn’t really matter. Then she got up to read, holding a big, thick book (her latest), with a microphone clipped to her lapel.
I couldn’t hear a word of it. It seemed as though she was muttering softly, but I’m not a good judge of that. I leaned over and whispered to Susan that I was having trouble hearing and was going to sit in the front row. Well, Susan outed me immediately, and informed the guy who had introduced Lorrie that she wasn’t audible. While I tried to surreptitiously move to the very center of the front row, he asked Lorrie to hold the lapel mic in her hand, so it could be closer to her mouth.
She did that for a few minutes, but it got awkward when she needed to hold the book, too. And when she held the mic in her hand, it was so close to her mouth that her speech was distorted, with the P’s and T’s sounding like balloons popping. Tiny balloons, but enough to muddy her speech. For me.
So, at the suggestion of a young man on my right, she put the mic back on her lapel, but closer to her face. She asked, “Can everyone hear me now?” I didn’t turn around to see the response behind me, but it was clear that she got some no’s because she started playing around with the mic and saying, “How about now?” And, “Now?”
That was when one of the professors leapt over the front two rows, got on the stage, took the big, regular-mic holder (which was empty), bent it around to the front of the lectern, and clipped the tiny lapel mic to it. Okay. It was closer to her mouth, and she could use her hands for other things.
Let the reading begin. Again.
This time, she read for about 20 minutes, and I still couldn’t hear clearly enough to know what she was mumbling into the mic, with the P’s and T’s popping again due to its proximity to her mouth. I sat there patiently, not wanting to be disruptive again, and thought about other things, in between the audience’s intermittent chuckling. To my credit, I did not get my phone out to check my email.
After she was done, and the Q&A period started, I slunk out of the room, as quietly as possible. Others were doing the same, so I felt a little less rude. The next day, I got an apologetic email from Susan.
Not Just Me
A couple of days later, I was in a gift shop downtown, and a young woman behind the counter asked if I had been at the reading the other night in Tucker Hall. I said yes. Turns out, she was sitting right behind me. When I mentioned that I had a really hard time hearing in that space, she replied, “Oh, I HATE that room! It’s the worst one on campus! I can never hear in there.”
The good news is that, the next time Susan invited me to a reading, she made a point of saying they had gotten the good mic back up and running. And, in fairness, making an entire campus of classrooms and other spaces hearing-friendly will take time, money… and attention. In fact, I’ve already managed to get an FM system installed in two auditoriums in another building on campus. So, slowly, the system is getting better, one complaint at a time.
I think of that passage I ink-circled, about inhaling smoke like a big secret and letting it burst forth. Advocating to hear can put you in the spotlight, uncomfortably, especially in a group situation, but we should let our needs burst forth to help others who are no doubt in the same situation.
Kathi Mestayer is a staff writer for Hearing Health magazine.
Age Effects on Speech Recognition
Age-related changes in perceptual organization have received less attention than other potential sources of decline in hearing ability. Perceptual organization is the process by which the auditory system interprets acoustic input from multiple sources to create an auditory scene. In daily life this is essential, because speech communication occurs in environments in which background sounds fluctuate and can mask the intended message.
Perceptual organization includes three interrelated auditory processes: glimpsing, speech segregation, and phonemic restoration. Glimpsing is the process of identifying recognizable fragments of speech and connecting them across gaps to create a coherent stream. Speech segregation refers to the process where the glimpses (speech fragments) are separated from background speech, to focus on a single target when the background includes multiple talkers. Phonemic restoration refers to the process of filling in missing information using prior knowledge of language, conversational context, and acoustic cues.
Kenneth Vaden, Ph.D.
Judy R. Dubno, Ph.D.
A July 2018 study in The Journal of the Acoustical Society of America by William J. Bologna, Au.D., Ph.D., Kenneth I. Vaden, Jr., Ph.D. (2015 ERG), Jayne B. Ahlstrom, M.S., and HHF board of directors member Judy R. Dubno, Ph.D. (1986–88 ERG), investigated these components to determine how their declines may contribute to increased speech recognition difficulty with age. As expected, older adults performed more poorly than younger adults. Older adults were less able to make use of limited speech information and reduced continuity. A competing talker created hearing challenges regardless of age. The study concludes, “Taken together, these results suggest that age-related declines in speech recognition may be partially explained by difficulty grouping short glimpses of speech into a coherent message.” —Elizabeth Crofts